397052306 has 32 divisors (see below), whose sum is σ = 730881792. Its totient is φ = 157893120.

The previous prime is 397052269. The next prime is 397052317. The reversal of 397052306 is 603250793.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5150 + ... + 28646.

It is an arithmetic number, because the mean of its divisors is an integer number (22840056).

Almost surely, 2^397052306 is an apocalyptic number.

397052306 is a deficient number, since it is larger than the sum of its proper divisors (333829486).

397052306 is a wasteful number, since it uses less digits than its factorization.

397052306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23594.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 397052306 is about 19926.1713833842. The cubic root of 397052306 is about 734.9919359875.

The spelling of 397052306 in words is "three hundred ninety-seven million, fifty-two thousand, three hundred six".