397071268 has 12 divisors (see below), whose sum is σ = 758045232. Its totient is φ = 180486920.

The previous prime is 397071251. The next prime is 397071271. The reversal of 397071268 is 862170793.

It is a happy number.

It is a super-2 number, since 2×397071268² = 315331183742255648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4512130 + ... + 4512217.

It is an arithmetic number, because the mean of its divisors is an integer number (63170436).

Almost surely, 2^397071268 is an apocalyptic number.

It is an amenable number.

397071268 is a deficient number, since it is larger than the sum of its proper divisors (360973964).

397071268 is a wasteful number, since it uses less digits than its factorization.

397071268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024362 (or 9024360 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 397071268 is about 19926.6471841100. The cubic root of 397071268 is about 735.0036361213.

The spelling of 397071268 in words is "three hundred ninety-seven million, seventy-one thousand, two hundred sixty-eight".