520430120 has 64 divisors (see below), whose sum is σ = 1348116480. Its totient is φ = 177117696.

The previous prime is 520430087. The next prime is 520430171. The reversal of 520430120 is 21034025.

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 15 ways as a sum of consecutive naturals, for example, 31577 + ... + 45143.

It is an arithmetic number, because the mean of its divisors is an integer number (21064320).

Almost surely, 2^520430120 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 520430120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674058240).

520430120 is an abundant number, since it is smaller than the sum of its proper divisors (827686360).

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

520430120 is a wasteful number, since it uses less digits than its factorization.

520430120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722 (or 13718 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 520430120 is about 22812.9375574475. The cubic root of 520430120 is about 804.3668078662.

Adding to 520430120 its reverse (21034025), we get a palindrome (541464145).

The spelling of 520430120 in words is "five hundred twenty million, four hundred thirty thousand, one hundred twenty".