520334220 has 96 divisors (see below), whose sum is σ = 1677408768. Its totient is φ = 118052352.

The previous prime is 520334207. The next prime is 520334273. The reversal of 520334220 is 22433025.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53019 + ... + 62061.

It is an arithmetic number, because the mean of its divisors is an integer number (17473008).

Almost surely, 2^520334220 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 520334220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (838704384).

520334220 is an abundant number, since it is smaller than the sum of its proper divisors (1157074548).

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

520334220 is a wasteful number, since it uses less digits than its factorization.

520334220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9199 (or 9197 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 520334220 is about 22810.8355831171. The cubic root of 520334220 is about 804.3173977644.

Adding to 520334220 its reverse (22433025), we get a palindrome (542767245).

The spelling of 520334220 in words is "five hundred twenty million, three hundred thirty-four thousand, two hundred twenty".