398038649924 has 12 divisors (see below), whose sum is σ = 706964169744. Its totient is φ = 196048887144.

The previous prime is 398038649881. The next prime is 398038650007. The reversal of 398038649924 is 429946830893.

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, 742609154 + ... + 742609689.

It is an arithmetic number, because the mean of its divisors is an integer number (58913680812).

Almost surely, 2^398038649924 is an apocalyptic number.

It is an amenable number.

398038649924 is a deficient number, since it is larger than the sum of its proper divisors (308925519820).

398038649924 is a wasteful number, since it uses less digits than its factorization.

398038649924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485218914 (or 1485218912 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 65.

The spelling of 398038649924 in words is "three hundred ninety-eight billion, thirty-eight million, six hundred forty-nine thousand, nine hundred twenty-four".