518338020 has 24 divisors (see below), whose sum is σ = 1451346624. Its totient is φ = 138223456.

The previous prime is 518338019. The next prime is 518338099. The reversal of 518338020 is 20833815.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4319424 + ... + 4319543.

It is an arithmetic number, because the mean of its divisors is an integer number (60472776).

Almost surely, 2^518338020 is an apocalyptic number.

It is an amenable number.

518338020 is an abundant number, since it is smaller than the sum of its proper divisors (933008604).

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

518338020 is a wasteful number, since it uses less digits than its factorization.

518338020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8638979 (or 8638977 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 518338020 is about 22767.0380155171. The cubic root of 518338020 is about 803.2875238116.

The spelling of 518338020 in words is "five hundred eighteen million, three hundred thirty-eight thousand, twenty".