397413730 has 16 divisors (see below), whose sum is σ = 817536960. Its totient is φ = 136256112.

The previous prime is 397413703. The next prime is 397413763. The reversal of 397413730 is 37314793.

It is a self number, because there is not a number n which added to its sum of digits gives 397413730.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2838600 + ... + 2838739.

It is an arithmetic number, because the mean of its divisors is an integer number (51096060).

Almost surely, 2^397413730 is an apocalyptic number.

397413730 is an abundant number, since it is smaller than the sum of its proper divisors (420123230).

397413730 is a wasteful number, since it uses less digits than its factorization.

397413730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677353.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 397413730 is about 19935.2383983739. The cubic root of 397413730 is about 735.2148815624.

The spelling of 397413730 in words is "three hundred ninety-seven million, four hundred thirteen thousand, seven hundred thirty".