397052272 has 40 divisors (see below), whose sum is σ = 857422800. Its totient is φ = 177011712.

The previous prime is 397052269. The next prime is 397052317. The reversal of 397052272 is 272250793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33247 + ... + 43582.

It is an arithmetic number, because the mean of its divisors is an integer number (21435570).

Almost surely, 2^397052272 is an apocalyptic number.

It is an amenable number.

397052272 is an abundant number, since it is smaller than the sum of its proper divisors (460370528).

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

397052272 is a wasteful number, since it uses less digits than its factorization.

397052272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76873 (or 76867 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 397052272 is about 19926.1705302349. The cubic root of 397052272 is about 734.9919150082.

The spelling of 397052272 in words is "three hundred ninety-seven million, fifty-two thousand, two hundred seventy-two".