398206422432 has 240 divisors, whose sum is σ = 1441371964032. Its totient is φ = 105021411840.

The previous prime is 398206422409. The next prime is 398206422469. The reversal of 398206422432 is 234224602893.

398206422432 is a `hidden beast` number, since 3 + 9 + 8 + 206 + 4 + 2 + 2 + 432 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 608244 + ... + 1079987.

Almost surely, 2^398206422432 is an apocalyptic number.

398206422432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398206422432 is an abundant number, since it is smaller than the sum of its proper divisors (1043165541600).

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

398206422432 is a wasteful number, since it uses less digits than its factorization.

398206422432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688273 (or 1688256 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 398206422432 in words is "three hundred ninety-eight billion, two hundred six million, four hundred twenty-two thousand, four hundred thirty-two".