393402924 has 36 divisors (see below), whose sum is σ = 995050056. Its totient is φ = 131053248.

The previous prime is 393402881. The next prime is 393402937. The reversal of 393402924 is 429204393.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×393402924² = 309531721223499552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94552 + ... + 98624.

Almost surely, 2^393402924 is an apocalyptic number.

It is an amenable number.

393402924 is an abundant number, since it is smaller than the sum of its proper divisors (601647132).

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

393402924 is a wasteful number, since it uses less digits than its factorization.

393402924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766 (or 6761 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 393402924 is about 19834.3874117655. The cubic root of 393402924 is about 732.7331854751.

The spelling of 393402924 in words is "three hundred ninety-three million, four hundred two thousand, nine hundred twenty-four".