King of Prussia Mall is anchored by Nordstrom, Macy's, Neiman Marcus, Bloomingdale's, Lord & Taylor, Dick's Sporting Goods, and Primark and a diverse merchant mix of over 400 stores, including a collection of luxury retailers. The mall is managed by Simon Property Group of Indianapolis, who owns 97 %. It is also the sole outpost in Philadelphia for a number of high-end stores. The mall has annual sales of $1.1 billion. A selection of international dining options are available at four food courts and in over 40 casual and fine dining establishments. The mall is a prominent tourist destination in the Philadelphia area, with an estimated 20 % of visitors as tourists. The King of Prussia Mall attracts 22 million visitors annually. Several nearby hotels offer mall tourist packages, which typically include mall gift cards. The mall employs over 7,000 people. Due to the mall's size, several retailers rent more than one space.

Based on this passage, how many stores does king of prussia have? Let's give stream of consciousness first:
To answer this question, we should know that: King of Prussia Mall is anchored by Nordstrom, Macy's, Neiman Marcus, Bloomingdale's, Lord & Taylor, Dick's Sporting Goods, and Primark and a diverse merchant mix of over 400 stores, including a collection of luxury retailers.
So, the final answer is over 400 stores.