520443312 has 40 divisors (see below), whose sum is σ = 1345710000. Its totient is φ = 173322240.

The previous prime is 520443311. The next prime is 520443323. The reversal of 520443312 is 213344025.

It is a super-2 number, since 2×520443312² = 541722482011058688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (520443311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55612 + ... + 64292.

It is an arithmetic number, because the mean of its divisors is an integer number (33642750).

Almost surely, 2^520443312 is an apocalyptic number.

It is an amenable number.

520443312 is an abundant number, since it is smaller than the sum of its proper divisors (825266688).

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

520443312 is a wasteful number, since it uses less digits than its factorization.

520443312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9935 counting only the distinct ones).

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

The square root of 520443312 is about 22813.2266897955. The cubic root of 520443312 is about 804.3736042428.

Adding to 520443312 its reverse (213344025), we get a palindrome (733787337).

It can be divided in two parts, 5204 and 43312, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 520443312 in words is "five hundred twenty million, four hundred forty-three thousand, three hundred twelve".