520043312 has 20 divisors (see below), whose sum is σ = 1042329120. Its totient is φ = 251055168.

The previous prime is 520043299. The next prime is 520043327. The reversal of 520043312 is 213340025.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559928 + ... + 560855.

It is an arithmetic number, because the mean of its divisors is an integer number (52116456).

Almost surely, 2^520043312 is an apocalyptic number.

It is an amenable number.

520043312 is an abundant number, since it is smaller than the sum of its proper divisors (522285808).

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

520043312 is a wasteful number, since it uses less digits than its factorization.

520043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120820 (or 1120814 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520043312 is about 22804.4581606317. The cubic root of 520043312 is about 804.1674774664.

Adding to 520043312 its reverse (213340025), we get a palindrome (733383337).

The spelling of 520043312 in words is "five hundred twenty million, forty-three thousand, three hundred twelve".