520313244 has 144 divisors (see below), whose sum is σ = 1416455040. Its totient is φ = 147329280.

The previous prime is 520313231. The next prime is 520313251. The reversal of 520313244 is 442313025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4773462 + ... + 4773570.

Almost surely, 2^520313244 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 520313244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708227520).

520313244 is an abundant number, since it is smaller than the sum of its proper divisors (896141796).

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

520313244 is a wasteful number, since it uses less digits than its factorization.

520313244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 520313244 is about 22810.3757969920. The cubic root of 520313244 is about 804.3065895904.

Adding to 520313244 its reverse (442313025), we get a palindrome (962626269).

The spelling of 520313244 in words is "five hundred twenty million, three hundred thirteen thousand, two hundred forty-four".