804056 has 16 divisors (see below), whose sum is σ = 1644840. Its totient is φ = 365440.

The previous prime is 804043. The next prime is 804059. The reversal of 804056 is 650408.

It is a super-2 number, since 2×804056² = 1293012102272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804059) by changing a digit.

804056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4481 + ... + 4656.

2⁸⁰⁴⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

804056 is an abundant number, since it is smaller than the sum of its proper divisors (840784).

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

804056 is a wasteful number, since it uses less digits than its factorization.

804056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154 (or 9150 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 804056 is about 896.6916972962. The cubic root of 804056 is about 92.9883979823.

The spelling of 804056 in words is "eight hundred four thousand, fifty-six".