397439364 has 48 divisors (see below), whose sum is σ = 1067494400. Its totient is φ = 112733856.

The previous prime is 397439351. The next prime is 397439369. The reversal of 397439364 is 463934793.

It is not an unprimeable number, because it can be changed into a prime (397439369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5344 + ... + 28695.

Almost surely, 2^397439364 is an apocalyptic number.

It is an amenable number.

397439364 is an abundant number, since it is smaller than the sum of its proper divisors (670055036).

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

397439364 is a wasteful number, since it uses less digits than its factorization.

397439364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34192 (or 34190 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 48.

The square root of 397439364 is about 19935.8813198715. The cubic root of 397439364 is about 735.2306888448.

The spelling of 397439364 in words is "three hundred ninety-seven million, four hundred thirty-nine thousand, three hundred sixty-four".