518998464 has 84 divisors (see below), whose sum is σ = 1508115856. Its totient is φ = 170615808.

The previous prime is 518998463. The next prime is 518998489. The reversal of 518998464 is 464899815.

It is a self number, because there is not a number n which added to its sum of digits gives 518998464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518998463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35877 + ... + 48219.

Almost surely, 2^518998464 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 518998464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754057928).

518998464 is an abundant number, since it is smaller than the sum of its proper divisors (989117392).

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

518998464 is a wasteful number, since it uses less digits than its factorization.

518998464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12434 (or 12421 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 518998464 is about 22781.5377883057. The cubic root of 518998464 is about 803.6285504774.

The spelling of 518998464 in words is "five hundred eighteen million, nine hundred ninety-eight thousand, four hundred sixty-four".