397630324 has 24 divisors (see below), whose sum is σ = 856435328. Its totient is φ = 157304160.

The previous prime is 397630319. The next prime is 397630349. The reversal of 397630324 is 423036793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545832 + ... + 546559.

Almost surely, 2^397630324 is an apocalyptic number.

It is an amenable number.

397630324 is an abundant number, since it is smaller than the sum of its proper divisors (458805004).

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

397630324 is a wasteful number, since it uses less digits than its factorization.

397630324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092415 (or 1092413 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 397630324 is about 19940.6700990714. The cubic root of 397630324 is about 735.3484235106.

The spelling of 397630324 in words is "three hundred ninety-seven million, six hundred thirty thousand, three hundred twenty-four".