520928 has 24 divisors (see below), whose sum is σ = 1044288. Its totient is φ = 255744.

The previous prime is 520921. The next prime is 520943. The reversal of 520928 is 829025.

It is a junction number, because it is equal to n+sod(n) for n = 520897 and 520906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520921) by changing a digit.

520928 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 2225 + ... + 2447.

It is an arithmetic number, because the mean of its divisors is an integer number (43512).

2⁵²⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

520928 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520928 is a wasteful number, since it uses less digits than its factorization.

520928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 520928 is about 721.7534204976. The cubic root of 520928 is about 80.4623230705.

The spelling of 520928 in words is "five hundred twenty thousand, nine hundred twenty-eight".