396057172 has 24 divisors (see below), whose sum is σ = 792671040. Its totient is φ = 169619520.

The previous prime is 396057169. The next prime is 396057173. The reversal of 396057172 is 271750693.

It is a super-2 number, since 2×396057172² = 313722566985275168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396057173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44079 + ... + 52297.

It is an arithmetic number, because the mean of its divisors is an integer number (33027960).

Almost surely, 2^396057172 is an apocalyptic number.

It is an amenable number.

396057172 is an abundant number, since it is smaller than the sum of its proper divisors (396613868).

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

396057172 is a wasteful number, since it uses less digits than its factorization.

396057172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9951 (or 9949 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 396057172 is about 19901.1851908373. The cubic root of 396057172 is about 734.3773844063.

The spelling of 396057172 in words is "three hundred ninety-six million, fifty-seven thousand, one hundred seventy-two".