520314320 has 40 divisors (see below), whose sum is σ = 1211205960. Its totient is φ = 207872000.

The previous prime is 520314293. The next prime is 520314329. The reversal of 520314320 is 23413025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 519475264 = 916^2 + 22792^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 520314292 and 520314301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520314329) 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, 70820 + ... + 77820.

It is an arithmetic number, because the mean of its divisors is an integer number (30280149).

Almost surely, 2^520314320 is an apocalyptic number.

It is an amenable number.

520314320 is an abundant number, since it is smaller than the sum of its proper divisors (690891640).

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

520314320 is a wasteful number, since it uses less digits than its factorization.

520314320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943 (or 7937 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 520314320 is about 22810.3993827377. The cubic root of 520314320 is about 804.3071440213.

Adding to 520314320 its reverse (23413025), we get a palindrome (543727345).

The spelling of 520314320 in words is "five hundred twenty million, three hundred fourteen thousand, three hundred twenty".