398826764044 has 24 divisors (see below), whose sum is σ = 730126504800. Its totient is φ = 190373715840.

The previous prime is 398826764003. The next prime is 398826764071. The reversal of 398826764044 is 440467628893.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19305192 + ... + 19325839.

It is an arithmetic number, because the mean of its divisors is an integer number (30421937700).

Almost surely, 2^398826764044 is an apocalyptic number.

It is an amenable number.

398826764044 is a deficient number, since it is larger than the sum of its proper divisors (331299740756).

398826764044 is a wasteful number, since it uses less digits than its factorization.

398826764044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631153 (or 38631151 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 61.

The spelling of 398826764044 in words is "three hundred ninety-eight billion, eight hundred twenty-six million, seven hundred sixty-four thousand, forty-four".