Table: rio_divisions_2010_2
Columns: administrative_division
area_km
population_2000_census
population_2010_census
population_density_2010_km

Question: What is the total population from the 2000 census for the municipality that has a 464.5 square km area and a population density in 2010 larger than 1840?
SQL: SELECT COUNT("population_2000_census") FROM rio_divisions_2010_2 WHERE "area_km" = 464.5 AND "population_density_2010_km" > 1840

Question: What was the sum of the population in 2010 for the division of japeri with an area of 82.9 squared km?
SQL: SELECT SUM("population_2010_census") FROM rio_divisions_2010_2 WHERE "administrative_division" = 'japeri' AND "area_km" < 82.9