397188960 has 96 divisors (see below), whose sum is σ = 1429892352. Its totient is φ = 90785280.

The previous prime is 397188949. The next prime is 397188971. The reversal of 397188960 is 69881793.

It is an interprime number because it is at equal distance from previous prime (397188949) and next prime (397188971).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55746 + ... + 62465.

It is an arithmetic number, because the mean of its divisors is an integer number (14894712).

Almost surely, 2^397188960 is an apocalyptic number.

397188960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397188960 is an abundant number, since it is smaller than the sum of its proper divisors (1032703392).

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

397188960 is a wasteful number, since it uses less digits than its factorization.

397188960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118236 (or 118228 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 397188960 is about 19929.6000963391. The cubic root of 397188960 is about 735.0762473540.

The spelling of 397188960 in words is "three hundred ninety-seven million, one hundred eighty-eight thousand, nine hundred sixty".