397149576 has 32 divisors (see below), whose sum is σ = 1006862400. Its totient is φ = 130518080.

The previous prime is 397149551. The next prime is 397149607. The reversal of 397149576 is 675941793.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114831 + ... + 118238.

It is an arithmetic number, because the mean of its divisors is an integer number (31464450).

Almost surely, 2^397149576 is an apocalyptic number.

It is an amenable number.

397149576 is an abundant number, since it is smaller than the sum of its proper divisors (609712824).

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

397149576 is a wasteful number, since it uses less digits than its factorization.

397149576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233149 (or 233145 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 51.

The square root of 397149576 is about 19928.6119938143. The cubic root of 397149576 is about 735.0519506063.

The spelling of 397149576 in words is "three hundred ninety-seven million, one hundred forty-nine thousand, five hundred seventy-six".