520422168 has 128 divisors (see below), whose sum is σ = 1580313600. Its totient is φ = 139636224.

The previous prime is 520422121. The next prime is 520422181. The reversal of 520422168 is 861224025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178821 + ... + 181707.

It is an arithmetic number, because the mean of its divisors is an integer number (12346200).

Almost surely, 2^520422168 is an apocalyptic number.

520422168 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520422168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790156800).

520422168 is an abundant number, since it is smaller than the sum of its proper divisors (1059891432).

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

520422168 is a wasteful number, since it uses less digits than its factorization.

520422168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 520422168 is about 22812.7632697137. The cubic root of 520422168 is about 804.3627110258.

It can be divided in two parts, 5204 and 22168, that added together give a palindrome (27372).

The spelling of 520422168 in words is "five hundred twenty million, four hundred twenty-two thousand, one hundred sixty-eight".