518386690 has 16 divisors (see below), whose sum is σ = 982206720. Its totient is φ = 196441200.

The previous prime is 518386679. The next prime is 518386697. The reversal of 518386690 is 96683815.

It is a super-2 number, since 2×518386690² = 537449520738312200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 518386690.

It is not an unprimeable number, because it can be changed into a prime (518386697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363986 + ... + 1364365.

It is an arithmetic number, because the mean of its divisors is an integer number (61387920).

Almost surely, 2^518386690 is an apocalyptic number.

518386690 is a deficient number, since it is larger than the sum of its proper divisors (463820030).

518386690 is a wasteful number, since it uses less digits than its factorization.

518386690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728377.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 518386690 is about 22768.1068602552. The cubic root of 518386690 is about 803.3126649220.

The spelling of 518386690 in words is "five hundred eighteen million, three hundred eighty-six thousand, six hundred ninety".