397426368 has 28 divisors (see below), whose sum is σ = 1051524440. Its totient is φ = 132475392.

The previous prime is 397426333. The next prime is 397426373. The reversal of 397426368 is 863624793.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1034773 + ... + 1035156.

Almost surely, 2^397426368 is an apocalyptic number.

It is an amenable number.

397426368 is an abundant number, since it is smaller than the sum of its proper divisors (654098072).

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

397426368 is a wasteful number, since it uses less digits than its factorization.

397426368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069944 (or 2069934 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 397426368 is about 19935.5553722489. Note that the first 3 decimals coincide. The cubic root of 397426368 is about 735.2226749077. Note that the first 3 decimals are identical.

The spelling of 397426368 in words is "three hundred ninety-seven million, four hundred twenty-six thousand, three hundred sixty-eight".