518993792 has 64 divisors (see below), whose sum is σ = 1065022800. Its totient is φ = 251817984.

The previous prime is 518993779. The next prime is 518993803. The reversal of 518993792 is 297399815.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×518993792² = 538709112269078528, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 625634 + ... + 626462.

Almost surely, 2^518993792 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 518993792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532511400).

518993792 is an abundant number, since it is smaller than the sum of its proper divisors (546029008).

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

518993792 is an equidigital number, since it uses as much as digits as its factorization.

518993792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 971 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 53.

The square root of 518993792 is about 22781.4352489039. The cubic root of 518993792 is about 803.6261390612.

The spelling of 518993792 in words is "five hundred eighteen million, nine hundred ninety-three thousand, seven hundred ninety-two".