398937019804 has 12 divisors (see below), whose sum is σ = 700715948128. Its totient is φ = 198732463200.

The previous prime is 398937019801. The next prime is 398937019843. The reversal of 398937019804 is 408910739893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398937019801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184010457 + ... + 184012624.

Almost surely, 2^398937019804 is an apocalyptic number.

It is an amenable number.

398937019804 is a deficient number, since it is larger than the sum of its proper divisors (301778928324).

398937019804 is a wasteful number, since it uses less digits than its factorization.

398937019804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368023356 (or 368023354 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 398937019804 in words is "three hundred ninety-eight billion, nine hundred thirty-seven million, nineteen thousand, eight hundred four".