518155040 has 96 divisors (see below), whose sum is σ = 1375750656. Its totient is φ = 182983680.

The previous prime is 518155037. The next prime is 518155069. The reversal of 518155040 is 40551815.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 518154994 and 518155012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42425 + ... + 53255.

It is an arithmetic number, because the mean of its divisors is an integer number (14330736).

Almost surely, 2^518155040 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 518155040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687875328).

518155040 is an abundant number, since it is smaller than the sum of its proper divisors (857595616).

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

518155040 is a wasteful number, since it uses less digits than its factorization.

518155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10882 (or 10874 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 518155040 is about 22763.0191319166. The cubic root of 518155040 is about 803.1929890713.

The spelling of 518155040 in words is "five hundred eighteen million, one hundred fifty-five thousand, forty".