518008820 has 48 divisors (see below), whose sum is σ = 1244933760. Its totient is φ = 177358464.

The previous prime is 518008811. The next prime is 518008823. The reversal of 518008820 is 28800815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518008823) 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 15 ways as a sum of consecutive naturals, for example, 120671 + ... + 124889.

It is an arithmetic number, because the mean of its divisors is an integer number (25936120).

Almost surely, 2^518008820 is an apocalyptic number.

It is an amenable number.

518008820 is an abundant number, since it is smaller than the sum of its proper divisors (726924940).

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

518008820 is a wasteful number, since it uses less digits than its factorization.

518008820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112 (or 5110 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 518008820 is about 22759.8071169331. The cubic root of 518008820 is about 803.1174300083.

The spelling of 518008820 in words is "five hundred eighteen million, eight thousand, eight hundred twenty".