396309172 has 12 divisors (see below), whose sum is σ = 792618400. Its totient is φ = 169846776.

The previous prime is 396309161. The next prime is 396309181. The reversal of 396309172 is 271903693.

396309172 is an admirable number.

It is a super-2 number, since 2×396309172² = 314121919622651168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7076922 + ... + 7076977.

Almost surely, 2^396309172 is an apocalyptic number.

It is an amenable number.

396309172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

396309172 is a wasteful number, since it uses less digits than its factorization.

396309172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153910 (or 14153908 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 396309172 is about 19907.5154652709. The cubic root of 396309172 is about 734.5331059180.

The spelling of 396309172 in words is "three hundred ninety-six million, three hundred nine thousand, one hundred seventy-two".