520360452 has 72 divisors (see below), whose sum is σ = 1357347992. Its totient is φ = 167961600.

The previous prime is 520360417. The next prime is 520360459. The reversal of 520360452 is 254063025.

520360452 is a `hidden beast` number, since 5 + 2 + 0 + 3 + 604 + 52 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 316270656 + 204089796 = 17784^2 + 14286^2 .

It is not an unprimeable number, because it can be changed into a prime (520360459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320202 + ... + 321822.

Almost surely, 2^520360452 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 520360452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678673996).

520360452 is an abundant number, since it is smaller than the sum of its proper divisors (836987540).

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

520360452 is a wasteful number, since it uses less digits than its factorization.

520360452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 520360452 is about 22811.4105657673. The cubic root of 520360452 is about 804.3309137564.

The spelling of 520360452 in words is "five hundred twenty million, three hundred sixty thousand, four hundred fifty-two".