520949120 has 64 divisors (see below), whose sum is σ = 1264086000. Its totient is φ = 205252608.

The previous prime is 520949119. The next prime is 520949153. The reversal of 520949120 is 21949025.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36806 + ... + 48954.

Almost surely, 2^520949120 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 520949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632043000).

520949120 is an abundant number, since it is smaller than the sum of its proper divisors (743136880).

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

520949120 is a wasteful number, since it uses less digits than its factorization.

520949120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235 (or 12223 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 520949120 is about 22824.3098471783. The cubic root of 520949120 is about 804.6341045124.

The spelling of 520949120 in words is "five hundred twenty million, nine hundred forty-nine thousand, one hundred twenty".