Table schema:
CREATE TABLE table_name_25 (density__2005_ INTEGER, area__km²_ VARCHAR, population__2005_ VARCHAR)

Question: Which Density (2005) has an Area (km²) of 340086.7, and a Population (2005) smaller than 5926300?
SQL: SELECT SUM(density__2005_) FROM table_name_25 WHERE area__km²_ = 340086.7 AND population__2005_ < 5926300