397338724 has 12 divisors (see below), whose sum is σ = 698462464. Its totient is φ = 197778024.

The previous prime is 397338713. The next prime is 397338761. The reversal of 397338724 is 427833793.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221832 + ... + 223615.

Almost surely, 2^397338724 is an apocalyptic number.

It is an amenable number.

397338724 is a deficient number, since it is larger than the sum of its proper divisors (301123740).

397338724 is a wasteful number, since it uses less digits than its factorization.

397338724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445674 (or 445672 counting only the distinct ones).

The product of its digits is 762048, while the sum is 46.

The square root of 397338724 is about 19933.3570679903. The cubic root of 397338724 is about 735.1686249849.

The spelling of 397338724 in words is "three hundred ninety-seven million, three hundred thirty-eight thousand, seven hundred twenty-four".