397306744 has 16 divisors (see below), whose sum is σ = 751786200. Its totient is φ = 196830432.

The previous prime is 397306727. The next prime is 397306747. The reversal of 397306744 is 447603793.

It is a self number, because there is not a number n which added to its sum of digits gives 397306744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397306747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226942 + ... + 228685.

Almost surely, 2^397306744 is an apocalyptic number.

It is an amenable number.

397306744 is a deficient number, since it is larger than the sum of its proper divisors (354479456).

397306744 is a wasteful number, since it uses less digits than its factorization.

397306744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455742 (or 455738 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 43.

The square root of 397306744 is about 19932.5548788910. The cubic root of 397306744 is about 735.1489009879.

The spelling of 397306744 in words is "three hundred ninety-seven million, three hundred six thousand, seven hundred forty-four".