402015256 has 32 divisors (see below), whose sum is σ = 772992000. Its totient is φ = 195904800.

The previous prime is 402015247. The next prime is 402015287. The reversal of 402015256 is 652510204.

It is a self number, because there is not a number n which added to its sum of digits gives 402015256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205081 + ... + 207031.

It is an arithmetic number, because the mean of its divisors is an integer number (24156000).

Almost surely, 2^402015256 is an apocalyptic number.

It is an amenable number.

402015256 is a deficient number, since it is larger than the sum of its proper divisors (370976744).

402015256 is a wasteful number, since it uses less digits than its factorization.

402015256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 402015256 is about 20050.3181022147. The cubic root of 402015256 is about 738.0416052611.

The spelling of 402015256 in words is "four hundred two million, fifteen thousand, two hundred fifty-six".