520728246 has 12 divisors (see below), whose sum is σ = 1128244572. Its totient is φ = 173576076.

The previous prime is 520728163. The next prime is 520728251. The reversal of 520728246 is 642827025.

It is a self number, because there is not a number n which added to its sum of digits gives 520728246.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 14464656 + ... + 14464691.

It is an arithmetic number, because the mean of its divisors is an integer number (94020381).

Almost surely, 2^520728246 is an apocalyptic number.

520728246 is an abundant number, since it is smaller than the sum of its proper divisors (607516326).

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

520728246 is a wasteful number, since it uses less digits than its factorization.

520728246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28929355 (or 28929352 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 520728246 is about 22819.4707651164. The cubic root of 520728246 is about 804.5203711557.

The spelling of 520728246 in words is "five hundred twenty million, seven hundred twenty-eight thousand, two hundred forty-six".