402668304 has 20 divisors (see below), whose sum is σ = 1040226576. Its totient is φ = 134222752.

The previous prime is 402668281. The next prime is 402668323. The reversal of 402668304 is 403866204.

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, 4194414 + ... + 4194509.

Almost surely, 2^402668304 is an apocalyptic number.

It is an amenable number.

402668304 is an abundant number, since it is smaller than the sum of its proper divisors (637558272).

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

402668304 is a wasteful number, since it uses less digits than its factorization.

402668304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388934 (or 8388928 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 402668304 is about 20066.5967219158. The cubic root of 402668304 is about 738.4410228141.

The spelling of 402668304 in words is "four hundred two million, six hundred sixty-eight thousand, three hundred four".