520420216 has 16 divisors (see below), whose sum is σ = 999588240. Its totient is φ = 253863360.

The previous prime is 520420213. The next prime is 520420217. The reversal of 520420216 is 612024025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520420211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792996 + ... + 793651.

It is an arithmetic number, because the mean of its divisors is an integer number (62474265).

Almost surely, 2^520420216 is an apocalyptic number.

It is an amenable number.

520420216 is a deficient number, since it is larger than the sum of its proper divisors (479168024).

520420216 is a wasteful number, since it uses less digits than its factorization.

520420216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586694 (or 1586690 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 520420216 is about 22812.7204866057. The cubic root of 520420216 is about 804.3617053563.

The spelling of 520420216 in words is "five hundred twenty million, four hundred twenty thousand, two hundred sixteen".