805209496 has 128 divisors (see below), whose sum is σ = 1943222400. Its totient is φ = 304312320.

The previous prime is 805209473. The next prime is 805209523. The reversal of 805209496 is 694902508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1581690 + ... + 1582198.

It is an arithmetic number, because the mean of its divisors is an integer number (15181425).

Almost surely, 2^805209496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805209496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971611200).

805209496 is an abundant number, since it is smaller than the sum of its proper divisors (1138012904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805209496 is a wasteful number, since it uses less digits than its factorization.

805209496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 805209496 is about 28376.2135599519. The cubic root of 805209496 is about 930.3284368155.

The spelling of 805209496 in words is "eight hundred five million, two hundred nine thousand, four hundred ninety-six".