509616920 has 16 divisors (see below), whose sum is σ = 1146638160. Its totient is φ = 203846752.

The previous prime is 509616907. The next prime is 509616959. The reversal of 509616920 is 29616905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6370172 + ... + 6370251.

It is an arithmetic number, because the mean of its divisors is an integer number (71664885).

Almost surely, 2^509616920 is an apocalyptic number.

It is an amenable number.

509616920 is an abundant number, since it is smaller than the sum of its proper divisors (637021240).

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

509616920 is a wasteful number, since it uses less digits than its factorization.

509616920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12740434 (or 12740430 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 509616920 is about 22574.6964542162. The cubic root of 509616920 is about 798.7568818220.

The spelling of 509616920 in words is "five hundred nine million, six hundred sixteen thousand, nine hundred twenty".