402497886 has 32 divisors (see below), whose sum is σ = 935083008. Its totient is φ = 113113440.

The previous prime is 402497813. The next prime is 402497923. The reversal of 402497886 is 688794204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75990 + ... + 81113.

It is an arithmetic number, because the mean of its divisors is an integer number (29221344).

Almost surely, 2^402497886 is an apocalyptic number.

402497886 is an abundant number, since it is smaller than the sum of its proper divisors (532585122).

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

402497886 is a wasteful number, since it uses less digits than its factorization.

402497886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157176.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 402497886 is about 20062.3499620558. The cubic root of 402497886 is about 738.3368333374.

The spelling of 402497886 in words is "four hundred two million, four hundred ninety-seven thousand, eight hundred eighty-six".