520944684 has 48 divisors (see below), whose sum is σ = 1310595552. Its totient is φ = 160100352.

The previous prime is 520944673. The next prime is 520944691. The reversal of 520944684 is 486449025.

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, 187852 + ... + 190604.

It is an arithmetic number, because the mean of its divisors is an integer number (27304074).

Almost surely, 2^520944684 is an apocalyptic number.

It is an amenable number.

520944684 is an abundant number, since it is smaller than the sum of its proper divisors (789650868).

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

520944684 is a wasteful number, since it uses less digits than its factorization.

520944684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986 (or 3984 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 520944684 is about 22824.2126698820. The cubic root of 520944684 is about 804.6318206253.

The spelling of 520944684 in words is "five hundred twenty million, nine hundred forty-four thousand, six hundred eighty-four".