398836512790 has 16 divisors (see below), whose sum is σ = 755690235120. Its totient is φ = 151138046880.

The previous prime is 398836512779. The next prime is 398836512793. The reversal of 398836512790 is 97215638893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398836512793) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1049569581 + ... + 1049569960.

It is an arithmetic number, because the mean of its divisors is an integer number (47230639695).

Almost surely, 2^398836512790 is an apocalyptic number.

398836512790 is a deficient number, since it is larger than the sum of its proper divisors (356853722330).

398836512790 is a wasteful number, since it uses less digits than its factorization.

398836512790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099139567.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 398836512790 in words is "three hundred ninety-eight billion, eight hundred thirty-six million, five hundred twelve thousand, seven hundred ninety".