520308168 has 32 divisors (see below), whose sum is σ = 1304720160. Its totient is φ = 172909440.

The previous prime is 520308167. The next prime is 520308221. The reversal of 520308168 is 861803025.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (520308167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24805 + ... + 40692.

It is an arithmetic number, because the mean of its divisors is an integer number (40772505).

Almost surely, 2^520308168 is an apocalyptic number.

It is an amenable number.

520308168 is an abundant number, since it is smaller than the sum of its proper divisors (784411992).

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

520308168 is a wasteful number, since it uses less digits than its factorization.

520308168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65837 (or 65833 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 520308168 is about 22810.2645315656. The cubic root of 520308168 is about 804.3039740676.

The spelling of 520308168 in words is "five hundred twenty million, three hundred eight thousand, one hundred sixty-eight".