520628920 has 96 divisors (see below), whose sum is σ = 1422036000. Its totient is φ = 170725632.

The previous prime is 520628873. The next prime is 520628923. The reversal of 520628920 is 29826025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520628923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39306 + ... + 50854.

It is an arithmetic number, because the mean of its divisors is an integer number (14812875).

Almost surely, 2^520628920 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 520628920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711018000).

520628920 is an abundant number, since it is smaller than the sum of its proper divisors (901407080).

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

520628920 is a wasteful number, since it uses less digits than its factorization.

520628920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11597 (or 11586 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 520628920 is about 22817.2943181263. The cubic root of 520628920 is about 804.4692153162.

The spelling of 520628920 in words is "five hundred twenty million, six hundred twenty-eight thousand, nine hundred twenty".