520902284 has 24 divisors (see below), whose sum is σ = 1048712448. Its totient is φ = 221763600.

The previous prime is 520902259. The next prime is 520902289. The reversal of 520902284 is 482209025.

It is a self number, because there is not a number n which added to its sum of digits gives 520902284.

It is not an unprimeable number, because it can be changed into a prime (520902289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57374 + ... + 65829.

It is an arithmetic number, because the mean of its divisors is an integer number (43696352).

Almost surely, 2^520902284 is an apocalyptic number.

It is an amenable number.

520902284 is an abundant number, since it is smaller than the sum of its proper divisors (527810164).

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

520902284 is a wasteful number, since it uses less digits than its factorization.

520902284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123365 (or 123363 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 520902284 is about 22823.2838128084. The cubic root of 520902284 is about 804.6099902110.

The spelling of 520902284 in words is "five hundred twenty million, nine hundred two thousand, two hundred eighty-four".