520343304 has 64 divisors (see below), whose sum is σ = 1413417600. Its totient is φ = 158678016.

The previous prime is 520343287. The next prime is 520343311. The reversal of 520343304 is 403343025.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27877 + ... + 42635.

It is an arithmetic number, because the mean of its divisors is an integer number (22084650).

Almost surely, 2^520343304 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 520343304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706708800).

520343304 is an abundant number, since it is smaller than the sum of its proper divisors (893074296).

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

520343304 is a wasteful number, since it uses less digits than its factorization.

520343304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894 (or 14890 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 520343304 is about 22811.0346981455. The cubic root of 520343304 is about 804.3220783309.

Adding to 520343304 its reverse (403343025), we get a palindrome (923686329).

The spelling of 520343304 in words is "five hundred twenty million, three hundred forty-three thousand, three hundred four".