402912672 has 24 divisors (see below), whose sum is σ = 1057646016. Its totient is φ = 134304192.

The previous prime is 402912661. The next prime is 402912677. The reversal of 402912672 is 276219204.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (402912677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098408 + ... + 2098599.

It is an arithmetic number, because the mean of its divisors is an integer number (44068584).

Almost surely, 2^402912672 is an apocalyptic number.

It is an amenable number.

402912672 is an abundant number, since it is smaller than the sum of its proper divisors (654733344).

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

402912672 is a wasteful number, since it uses less digits than its factorization.

402912672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197020 (or 4197012 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 402912672 is about 20072.6847232751. The cubic root of 402912672 is about 738.5903722603.

The spelling of 402912672 in words is "four hundred two million, nine hundred twelve thousand, six hundred seventy-two".