398604956 has 12 divisors (see below), whose sum is σ = 697720800. Its totient is φ = 199256160.

The previous prime is 398604937. The next prime is 398604961. The reversal of 398604956 is 659406893.

It is a congruent number.

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, 14120 + ... + 31568.

It is an arithmetic number, because the mean of its divisors is an integer number (58143400).

Almost surely, 2^398604956 is an apocalyptic number.

It is an amenable number.

398604956 is a deficient number, since it is larger than the sum of its proper divisors (299115844).

398604956 is a wasteful number, since it uses less digits than its factorization.

398604956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164 (or 23162 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 398604956 is about 19965.0934382988. The cubic root of 398604956 is about 735.9487376671.

The spelling of 398604956 in words is "three hundred ninety-eight million, six hundred four thousand, nine hundred fifty-six".