398858723904 has 224 divisors, whose sum is σ = 1162402836480. Its totient is φ = 120141508608.

The previous prime is 398858723899. The next prime is 398858723917. The reversal of 398858723904 is 409327858893.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30786292 + ... + 30799244.

Almost surely, 2^398858723904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398858723904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581201418240).

398858723904 is an abundant number, since it is smaller than the sum of its proper divisors (763544112576).

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

398858723904 is a wasteful number, since it uses less digits than its factorization.

398858723904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377 (or 13367 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 398858723904 in words is "three hundred ninety-eight billion, eight hundred fifty-eight million, seven hundred twenty-three thousand, nine hundred four".