518994432 has 160 divisors (see below), whose sum is σ = 1676410560. Its totient is φ = 157224960.

The previous prime is 518994419. The next prime is 518994433. The reversal of 518994432 is 234499815.

518994432 is a `hidden beast` number, since 51 + 89 + 94 + 432 = 666.

It is not an unprimeable number, because it can be changed into a prime (518994433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150358 + ... + 153770.

It is an arithmetic number, because the mean of its divisors is an integer number (10477566).

Almost surely, 2^518994432 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 518994432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838205280).

518994432 is an abundant number, since it is smaller than the sum of its proper divisors (1157416128).

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

518994432 is a wasteful number, since it uses less digits than its factorization.

518994432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3451 (or 3429 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 518994432 is about 22781.4492954246. The cubic root of 518994432 is about 803.6264693931.

The spelling of 518994432 in words is "five hundred eighteen million, nine hundred ninety-four thousand, four hundred thirty-two".