518226620 has 12 divisors (see below), whose sum is σ = 1088275944. Its totient is φ = 207290640.

The previous prime is 518226581. The next prime is 518226637. The reversal of 518226620 is 26622815.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12955646 + ... + 12955685.

It is an arithmetic number, because the mean of its divisors is an integer number (90689662).

Almost surely, 2^518226620 is an apocalyptic number.

It is an amenable number.

518226620 is an abundant number, since it is smaller than the sum of its proper divisors (570049324).

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

518226620 is a wasteful number, since it uses less digits than its factorization.

518226620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25911340 (or 25911338 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 518226620 is about 22764.5913646610. The cubic root of 518226620 is about 803.2299727940.

The spelling of 518226620 in words is "five hundred eighteen million, two hundred twenty-six thousand, six hundred twenty".