520368144 has 40 divisors (see below), whose sum is σ = 1351273632. Its totient is φ = 172554240.

The previous prime is 520368119. The next prime is 520368157. The reversal of 520368144 is 441863025.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18822 + ... + 37349.

Almost surely, 2^520368144 is an apocalyptic number.

It is an amenable number.

520368144 is an abundant number, since it is smaller than the sum of its proper divisors (830905488).

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

520368144 is a wasteful number, since it uses less digits than its factorization.

520368144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56375 (or 56369 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 520368144 is about 22811.5791649767. The cubic root of 520368144 is about 804.3348769598.

The spelling of 520368144 in words is "five hundred twenty million, three hundred sixty-eight thousand, one hundred forty-four".