397731300 has 36 divisors (see below), whose sum is σ = 1150770096. Its totient is φ = 106061600.

The previous prime is 397731227. The next prime is 397731319. The reversal of 397731300 is 3137793.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 662586 + ... + 663185.

It is an arithmetic number, because the mean of its divisors is an integer number (31965836).

Almost surely, 2^397731300 is an apocalyptic number.

397731300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

397731300 is an abundant number, since it is smaller than the sum of its proper divisors (753038796).

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

397731300 is a wasteful number, since it uses less digits than its factorization.

397731300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325788 (or 1325781 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 33.

The square root of 397731300 is about 19943.2018492518. The cubic root of 397731300 is about 735.4106641174.

The spelling of 397731300 in words is "three hundred ninety-seven million, seven hundred thirty-one thousand, three hundred".