398019404189376 has 84 divisors (see below), whose sum is σ = 1141031368013472. Its totient is φ = 132652130962944.

The previous prime is 398019404189357. The next prime is 398019404189387. The reversal of 398019404189376 is 673981404910893.

398019404189376 is a `hidden beast` number, since 3 + 9 + 8 + 0 + 1 + 9 + 404 + 189 + 37 + 6 = 666.

It is a super-2 number, since 2×398019404189376² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51055560 + ... + 58332743.

Almost surely, 2^{398019404189376} is an apocalyptic number.

398019404189376 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

398019404189376 is an abundant number, since it is smaller than the sum of its proper divisors (743011963824096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398019404189376 is a wasteful number, since it uses less digits than its factorization.

398019404189376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109394638 (or 109394625 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 398019404189376 in words is "three hundred ninety-eight trillion, nineteen billion, four hundred four million, one hundred eighty-nine thousand, three hundred seventy-six".