509317930 has 32 divisors (see below), whose sum is σ = 1003710528. Its totient is φ = 184540800.

The previous prime is 509317901. The next prime is 509317937. The reversal of 509317930 is 39713905.

It is a self number, because there is not a number n which added to its sum of digits gives 509317930.

It is not an unprimeable number, because it can be changed into a prime (509317937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22950 + ... + 39310.

It is an arithmetic number, because the mean of its divisors is an integer number (31365954).

Almost surely, 2^509317930 is an apocalyptic number.

509317930 is a deficient number, since it is larger than the sum of its proper divisors (494392598).

509317930 is a wasteful number, since it uses less digits than its factorization.

509317930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16662.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 509317930 is about 22568.0732451842. The cubic root of 509317930 is about 798.6006422161.

The spelling of 509317930 in words is "five hundred nine million, three hundred seventeen thousand, nine hundred thirty".