398315588 has 12 divisors (see below), whose sum is σ = 760420752. Its totient is φ = 181052520.

The previous prime is 398315573. The next prime is 398315611. The reversal of 398315588 is 885513893.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4526270 + ... + 4526357.

It is an arithmetic number, because the mean of its divisors is an integer number (63368396).

Almost surely, 2^398315588 is an apocalyptic number.

It is an amenable number.

398315588 is a deficient number, since it is larger than the sum of its proper divisors (362105164).

398315588 is a wasteful number, since it uses less digits than its factorization.

398315588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052642 (or 9052640 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 50.

The square root of 398315588 is about 19957.8452744779. The cubic root of 398315588 is about 735.7706067760.

The spelling of 398315588 in words is "three hundred ninety-eight million, three hundred fifteen thousand, five hundred eighty-eight".