82404256 has 24 divisors (see below), whose sum is σ = 176982624. Its totient is φ = 37456320.

The previous prime is 82404247. The next prime is 82404263. The reversal of 82404256 is 65240428.

It is a super-2 number, since 2×82404256² = 13580922813827072, which contains 22 as substring.

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, 116700 + ... + 117403.

It is an arithmetic number, because the mean of its divisors is an integer number (7374276).

Almost surely, 2^82404256 is an apocalyptic number.

It is an amenable number.

82404256 is an abundant number, since it is smaller than the sum of its proper divisors (94578368).

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

82404256 is a wasteful number, since it uses less digits than its factorization.

82404256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234124 (or 234116 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 82404256 is about 9077.6789985106. The cubic root of 82404256 is about 435.1609146163.

The spelling of 82404256 in words is "eighty-two million, four hundred four thousand, two hundred fifty-six".