809018832 has 20 divisors (see below), whose sum is σ = 2089965440. Its totient is φ = 269672928.

The previous prime is 809018809. The next prime is 809018843. The reversal of 809018832 is 238810908.

It is a super-2 number, since 2×809018832² = 1309022941061288448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8427232 + ... + 8427327.

It is an arithmetic number, because the mean of its divisors is an integer number (104498272).

Almost surely, 2^809018832 is an apocalyptic number.

It is an amenable number.

809018832 is an abundant number, since it is smaller than the sum of its proper divisors (1280946608).

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

809018832 is a wasteful number, since it uses less digits than its factorization.

809018832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16854570 (or 16854564 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 809018832 is about 28443.2563536596. The cubic root of 809018832 is about 931.7932148823.

The spelling of 809018832 in words is "eight hundred nine million, eighteen thousand, eight hundred thirty-two".