397415936 has 40 divisors (see below), whose sum is σ = 840783240. Its totient is φ = 187015168.

The previous prime is 397415923. The next prime is 397415947. The reversal of 397415936 is 639514793.

It is a congruent number.

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, 14126 + ... + 31533.

It is an arithmetic number, because the mean of its divisors is an integer number (21019581).

Almost surely, 2^397415936 is an apocalyptic number.

It is an amenable number.

397415936 is an abundant number, since it is smaller than the sum of its proper divisors (443367304).

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

397415936 is an equidigital number, since it uses as much as digits as its factorization.

397415936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45694 (or 45678 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 397415936 is about 19935.2937274573. The cubic root of 397415936 is about 735.2162419256.

The spelling of 397415936 in words is "three hundred ninety-seven million, four hundred fifteen thousand, nine hundred thirty-six".