520140800 has 72 divisors (see below), whose sum is σ = 1289761200. Its totient is φ = 208035840.

The previous prime is 520140799. The next prime is 520140811. The reversal of 520140800 is 8041025.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46121 + ... + 56279.

It is an arithmetic number, because the mean of its divisors is an integer number (17913350).

Almost surely, 2^520140800 is an apocalyptic number.

520140800 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 520140800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644880600).

520140800 is an abundant number, since it is smaller than the sum of its proper divisors (769620400).

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

520140800 is a wasteful number, since it uses less digits than its factorization.

520140800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 520140800 is about 22806.5955372563. The cubic root of 520140800 is about 804.2177244228.

Adding to 520140800 its reverse (8041025), we get a palindrome (528181825).

The spelling of 520140800 in words is "five hundred twenty million, one hundred forty thousand, eight hundred".