520340800 has 126 divisors (see below), whose sum is σ = 1489626942. Its totient is φ = 178375680.

The previous prime is 520340773. The next prime is 520340813. The reversal of 520340800 is 8043025.

It can be written as a sum of positive squares in 3 ways, for example, as 3415104 + 516925696 = 1848^2 + 22736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 75082 + ... + 81718.

Almost surely, 2^520340800 is an apocalyptic number.

520340800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520340800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744813471).

520340800 is an abundant number, since it is smaller than the sum of its proper divisors (969286142).

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

520340800 is a wasteful number, since it uses less digits than its factorization.

520340800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673 (or 6651 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 520340800 is about 22810.9798123623. The cubic root of 520340800 is about 804.3207881406.

Adding to 520340800 its reverse (8043025), we get a palindrome (528383825).

The spelling of 520340800 in words is "five hundred twenty million, three hundred forty thousand, eight hundred".