520995328 has 120 divisors (see below), whose sum is σ = 1266293952. Its totient is φ = 209731584.

The previous prime is 520995317. The next prime is 520995347. The reversal of 520995328 is 823599025.

It is a happy number.

It is a super-2 number, since 2×520995328² = 542872263595655168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1035525 + ... + 1036027.

Almost surely, 2^520995328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520995328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633146976).

520995328 is an abundant number, since it is smaller than the sum of its proper divisors (745298624).

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

520995328 is an equidigital number, since it uses as much as digits as its factorization.

520995328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 520995328 is about 22825.3220787791. The cubic root of 520995328 is about 804.6578940612.

The spelling of 520995328 in words is "five hundred twenty million, nine hundred ninety-five thousand, three hundred twenty-eight".