520399460 has 24 divisors (see below), whose sum is σ = 1248959040. Its totient is φ = 178422624.

The previous prime is 520399447. The next prime is 520399483. The reversal of 520399460 is 64993025.

It is an unprimeable number.

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, 1858430 + ... + 1858709.

It is an arithmetic number, because the mean of its divisors is an integer number (52039960).

Almost surely, 2^520399460 is an apocalyptic number.

It is an amenable number.

520399460 is an abundant number, since it is smaller than the sum of its proper divisors (728559580).

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

520399460 is a wasteful number, since it uses less digits than its factorization.

520399460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717155 (or 3717153 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 520399460 is about 22812.2655604392. The cubic root of 520399460 is about 804.3510117201.

The spelling of 520399460 in words is "five hundred twenty million, three hundred ninety-nine thousand, four hundred sixty".