398830858512 has 80 divisors (see below), whose sum is σ = 1100574112320. Its totient is φ = 124016091136.

The previous prime is 398830858499. The next prime is 398830858513. The reversal of 398830858512 is 215858038893.

It is not an unprimeable number, because it can be changed into a prime (398830858513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2070462 + ... + 2254877.

It is an arithmetic number, because the mean of its divisors is an integer number (13757176404).

Almost surely, 2^398830858512 is an apocalyptic number.

It is an amenable number.

398830858512 is an abundant number, since it is smaller than the sum of its proper divisors (701743253808).

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

398830858512 is a wasteful number, since it uses less digits than its factorization.

398830858512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325480 (or 4325474 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 398830858512 in words is "three hundred ninety-eight billion, eight hundred thirty million, eight hundred fifty-eight thousand, five hundred twelve".