397225934 has 16 divisors (see below), whose sum is σ = 704440800. Its totient is φ = 164369184.

The previous prime is 397225897. The next prime is 397225943. The reversal of 397225934 is 439522793.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488789 + ... + 489600.

It is an arithmetic number, because the mean of its divisors is an integer number (44027550).

Almost surely, 2^397225934 is an apocalyptic number.

397225934 is a deficient number, since it is larger than the sum of its proper divisors (307214866).

397225934 is a wasteful number, since it uses less digits than its factorization.

397225934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978427.

The product of its digits is 408240, while the sum is 44.

The square root of 397225934 is about 19930.5276899534. The cubic root of 397225934 is about 735.0990558646.

The spelling of 397225934 in words is "three hundred ninety-seven million, two hundred twenty-five thousand, nine hundred thirty-four".