397712304 has 60 divisors (see below), whose sum is σ = 1214232552. Its totient is φ = 120518400.

The previous prime is 397712303. The next prime is 397712309. The reversal of 397712304 is 403217793.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (397712303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123957 + ... + 127124.

Almost surely, 2^397712304 is an apocalyptic number.

It is an amenable number.

397712304 is an abundant number, since it is smaller than the sum of its proper divisors (816520248).

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

397712304 is a wasteful number, since it uses less digits than its factorization.

397712304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251106 (or 251097 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 397712304 is about 19942.7255910520. The cubic root of 397712304 is about 735.3989559756.

The spelling of 397712304 in words is "three hundred ninety-seven million, seven hundred twelve thousand, three hundred four".