397152152 has 8 divisors (see below), whose sum is σ = 744660300. Its totient is φ = 198576072.

The previous prime is 397152149. The next prime is 397152179. The reversal of 397152152 is 251251793.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×397152152² = 315459663676462208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24822002 + ... + 24822017.

Almost surely, 2^397152152 is an apocalyptic number.

It is an amenable number.

397152152 is a deficient number, since it is larger than the sum of its proper divisors (347508148).

397152152 is a wasteful number, since it uses less digits than its factorization.

397152152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49644025 (or 49644021 counting only the distinct ones).

The product of its digits is 18900, while the sum is 35.

The square root of 397152152 is about 19928.6766244023. The cubic root of 397152152 is about 735.0535398394.

The spelling of 397152152 in words is "three hundred ninety-seven million, one hundred fifty-two thousand, one hundred fifty-two".