402656124 has 48 divisors (see below), whose sum is σ = 1055803392. Its totient is φ = 118506432.

The previous prime is 402656119. The next prime is 402656143. The reversal of 402656124 is 421656204.

It is a junction number, because it is equal to n+sod(n) for n = 402656091 and 402656100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52524 + ... + 59699.

It is an arithmetic number, because the mean of its divisors is an integer number (21995904).

Almost surely, 2^402656124 is an apocalyptic number.

It is an amenable number.

402656124 is an abundant number, since it is smaller than the sum of its proper divisors (653147268).

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

402656124 is a wasteful number, since it uses less digits than its factorization.

402656124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112266 (or 112264 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 402656124 is about 20066.2932301908. The cubic root of 402656124 is about 738.4335772299.

The spelling of 402656124 in words is "four hundred two million, six hundred fifty-six thousand, one hundred twenty-four".