397574072 has 16 divisors (see below), whose sum is σ = 851944560. Its totient is φ = 170388864.

The previous prime is 397574071. The next prime is 397574141. The reversal of 397574072 is 270475793.

It is a super-2 number, since 2×397574072² = 316130285453322368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397574071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3549713 + ... + 3549824.

It is an arithmetic number, because the mean of its divisors is an integer number (53246535).

Almost surely, 2^397574072 is an apocalyptic number.

It is an amenable number.

397574072 is an abundant number, since it is smaller than the sum of its proper divisors (454370488).

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

397574072 is a wasteful number, since it uses less digits than its factorization.

397574072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099550 (or 7099546 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 397574072 is about 19939.2595649889. The cubic root of 397574072 is about 735.3137457645.

The spelling of 397574072 in words is "three hundred ninety-seven million, five hundred seventy-four thousand, seventy-two".