398197983996 has 36 divisors (see below), whose sum is σ = 1006575824800. Its totient is φ = 132730049088.

The previous prime is 398197983973. The next prime is 398197984033. The reversal of 398197983996 is 699389791893.

It is a happy number.

398197983996 is a `hidden beast` number, since 39 + 8 + 197 + 9 + 8 + 399 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 2840685 + ... + 2977563.

Almost surely, 2^398197983996 is an apocalyptic number.

398197983996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

398197983996 is an abundant number, since it is smaller than the sum of its proper divisors (608377840804).

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

398197983996 is a wasteful number, since it uses less digits than its factorization.

398197983996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217698 (or 217693 counting only the distinct ones).

The product of its digits is 1428513408, while the sum is 81.

The spelling of 398197983996 in words is "three hundred ninety-eight billion, one hundred ninety-seven million, nine hundred eighty-three thousand, nine hundred ninety-six".