509224368 has 20 divisors (see below), whose sum is σ = 1315496408. Its totient is φ = 169741440.

The previous prime is 509224363. The next prime is 509224381. The reversal of 509224368 is 863422905.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (509224363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5304373 + ... + 5304468.

Almost surely, 2^509224368 is an apocalyptic number.

It is an amenable number.

509224368 is an abundant number, since it is smaller than the sum of its proper divisors (806272040).

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

509224368 is a wasteful number, since it uses less digits than its factorization.

509224368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608852 (or 10608846 counting only the distinct ones).

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

The square root of 509224368 is about 22566.0002658867. Note that the first 3 decimals coincide. The cubic root of 509224368 is about 798.5517380872.

The spelling of 509224368 in words is "five hundred nine million, two hundred twenty-four thousand, three hundred sixty-eight".