398937019844 has 36 divisors (see below), whose sum is σ = 792130907904. Its totient is φ = 175485486000.

The previous prime is 398937019843. The next prime is 398937019849. The reversal of 398937019844 is 448910739893.

It is not an unprimeable number, because it can be changed into a prime (398937019843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13279352 + ... + 13309359.

Almost surely, 2^398937019844 is an apocalyptic number.

It is an amenable number.

398937019844 is a deficient number, since it is larger than the sum of its proper divisors (393193888060).

398937019844 is a wasteful number, since it uses less digits than its factorization.

398937019844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26588768 (or 26588755 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 398937019844 in words is "three hundred ninety-eight billion, nine hundred thirty-seven million, nineteen thousand, eight hundred forty-four".