402220568 has 16 divisors (see below), whose sum is σ = 754998000. Its totient is φ = 200887776.

The previous prime is 402220549. The next prime is 402220571. The reversal of 402220568 is 865022204.

It is a self number, because there is not a number n which added to its sum of digits gives 402220568.

It is a congruent number.

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, 20003 + ... + 34706.

It is an arithmetic number, because the mean of its divisors is an integer number (47187375).

Almost surely, 2^402220568 is an apocalyptic number.

It is an amenable number.

402220568 is a deficient number, since it is larger than the sum of its proper divisors (352777432).

402220568 is a wasteful number, since it uses less digits than its factorization.

402220568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55634 (or 55630 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 402220568 is about 20055.4373674572. The cubic root of 402220568 is about 738.1672248800.

The spelling of 402220568 in words is "four hundred two million, two hundred twenty thousand, five hundred sixty-eight".