398202028992 has 280 divisors, whose sum is σ = 1228949393760. Its totient is φ = 127333140480.

The previous prime is 398202028957. The next prime is 398202028997. The reversal of 398202028992 is 299820202893.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398202028997) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23594317 + ... + 23611187.

Almost surely, 2^398202028992 is an apocalyptic number.

398202028992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398202028992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614474696880).

398202028992 is an abundant number, since it is smaller than the sum of its proper divisors (830747364768).

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

398202028992 is a wasteful number, since it uses less digits than its factorization.

398202028992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17081 (or 17062 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 398202028992 in words is "three hundred ninety-eight billion, two hundred two million, twenty-eight thousand, nine hundred ninety-two".