40565256 has 16 divisors (see below), whose sum is σ = 101413200. Its totient is φ = 13521744.

The previous prime is 40565251. The next prime is 40565257. The reversal of 40565256 is 65256504.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40565251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845086 + ... + 845133.

It is an arithmetic number, because the mean of its divisors is an integer number (6338325).

Almost surely, 2^40565256 is an apocalyptic number.

It is an amenable number.

40565256 is an abundant number, since it is smaller than the sum of its proper divisors (60847944).

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

40565256 is a wasteful number, since it uses less digits than its factorization.

40565256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690228 (or 1690224 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 40565256 is about 6369.0859626794. The cubic root of 40565256 is about 343.5986169349.

The spelling of 40565256 in words is "forty million, five hundred sixty-five thousand, two hundred fifty-six".