520994424 has 32 divisors (see below), whose sum is σ = 1304226000. Its totient is φ = 173432832.

The previous prime is 520994387. The next prime is 520994431. The reversal of 520994424 is 424499025.

It is a congruent number.

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, 4342 + ... + 32570.

Almost surely, 2^520994424 is an apocalyptic number.

It is an amenable number.

520994424 is an abundant number, since it is smaller than the sum of its proper divisors (783231576).

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

520994424 is a wasteful number, since it uses less digits than its factorization.

520994424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29007 (or 29003 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 520994424 is about 22825.3022762022. The cubic root of 520994424 is about 804.6574286628.

The spelling of 520994424 in words is "five hundred twenty million, nine hundred ninety-four thousand, four hundred twenty-four".