397574736 has 40 divisors (see below), whose sum is σ = 1106075040. Its totient is φ = 122330496.

The previous prime is 397574707. The next prime is 397574741. The reversal of 397574736 is 637475793.

It is a congruent number.

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, 317946 + ... + 319193.

It is an arithmetic number, because the mean of its divisors is an integer number (27651876).

Almost surely, 2^397574736 is an apocalyptic number.

It is an amenable number.

397574736 is an abundant number, since it is smaller than the sum of its proper divisors (708500304).

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

397574736 is a wasteful number, since it uses less digits than its factorization.

397574736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637163 (or 637157 counting only the distinct ones).

The product of its digits is 3333960, while the sum is 51.

The square root of 397574736 is about 19939.2762155501. The cubic root of 397574736 is about 735.3141551205.

The spelling of 397574736 in words is "three hundred ninety-seven million, five hundred seventy-four thousand, seven hundred thirty-six".