520002312 has 32 divisors (see below), whose sum is σ = 1304616480. Its totient is φ = 172719360.

The previous prime is 520002289. The next prime is 520002349. The reversal of 520002312 is 213200025.

It is a junction number, because it is equal to n+sod(n) for n = 520002291 and 520002300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31489 + ... + 45072.

It is an arithmetic number, because the mean of its divisors is an integer number (40769265).

Almost surely, 2^520002312 is an apocalyptic number.

It is an amenable number.

520002312 is an abundant number, since it is smaller than the sum of its proper divisors (784614168).

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

520002312 is a wasteful number, since it uses less digits than its factorization.

520002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76853 (or 76849 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 520002312 is about 22803.5591958799. The cubic root of 520002312 is about 804.1463435004.

Adding to 520002312 its reverse (213200025), we get a palindrome (733202337).

The spelling of 520002312 in words is "five hundred twenty million, two thousand, three hundred twelve".