520441140 has 48 divisors (see below), whose sum is σ = 1458692928. Its totient is φ = 138645504.

The previous prime is 520441139. The next prime is 520441151. The reversal of 520441140 is 41144025.

It is a happy number.

It is a congruent number.

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, 65419 + ... + 72941.

It is an arithmetic number, because the mean of its divisors is an integer number (30389436).

Almost surely, 2^520441140 is an apocalyptic number.

It is an amenable number.

520441140 is an abundant number, since it is smaller than the sum of its proper divisors (938251788).

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

520441140 is a wasteful number, since it uses less digits than its factorization.

520441140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8688 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 520441140 is about 22813.1790857828. The cubic root of 520441140 is about 804.3724852596.

Adding to 520441140 its reverse (41144025), we get a palindrome (561585165).

The spelling of 520441140 in words is "five hundred twenty million, four hundred forty-one thousand, one hundred forty".