509200028 has 12 divisors (see below), whose sum is σ = 892452792. Its totient is φ = 254213520.

The previous prime is 509199961. The next prime is 509200073. The reversal of 509200028 is 820002905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93650 + ... + 98937.

It is an arithmetic number, because the mean of its divisors is an integer number (74371066).

Almost surely, 2^509200028 is an apocalyptic number.

It is an amenable number.

509200028 is a deficient number, since it is larger than the sum of its proper divisors (383252764).

509200028 is a wasteful number, since it uses less digits than its factorization.

509200028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193252 (or 193250 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 509200028 is about 22565.4609525265. The cubic root of 509200028 is about 798.5390147769.

The spelling of 509200028 in words is "five hundred nine million, two hundred thousand, twenty-eight".