398572573440 has 288 divisors, whose sum is σ = 1310336778240. Its totient is φ = 103199588352.

The previous prime is 398572573417. The next prime is 398572573481. The reversal of 398572573440 is 44375275893.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22912266 + ... + 22929654.

It is an arithmetic number, because the mean of its divisors is an integer number (4549780480).

Almost surely, 2^398572573440 is an apocalyptic number.

398572573440 is a gapful number since it is divisible by the number (30) 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 398572573440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655168389120).

398572573440 is an abundant number, since it is smaller than the sum of its proper divisors (911764204800).

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

398572573440 is a wasteful number, since it uses less digits than its factorization.

398572573440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17587 (or 17573 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 57.

The spelling of 398572573440 in words is "three hundred ninety-eight billion, five hundred seventy-two million, five hundred seventy-three thousand, four hundred forty".