397670560 has 48 divisors (see below), whose sum is σ = 1073713536. Its totient is φ = 136343808.

The previous prime is 397670531. The next prime is 397670563. The reversal of 397670560 is 65076793.

It is not an unprimeable number, because it can be changed into a prime (397670563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176412 + ... + 178651.

It is an arithmetic number, because the mean of its divisors is an integer number (22369032).

Almost surely, 2^397670560 is an apocalyptic number.

It is an amenable number.

397670560 is an abundant number, since it is smaller than the sum of its proper divisors (676042976).

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

397670560 is a wasteful number, since it uses less digits than its factorization.

397670560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355085 (or 355077 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 43.

The square root of 397670560 is about 19941.6789664261. The cubic root of 397670560 is about 735.3732258454.

The spelling of 397670560 in words is "three hundred ninety-seven million, six hundred seventy thousand, five hundred sixty".