509448172 has 12 divisors (see below), whose sum is σ = 920293696. Its totient is φ = 246507120.

The previous prime is 509448161. The next prime is 509448221. The reversal of 509448172 is 271844905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2054103 + ... + 2054350.

Almost surely, 2^509448172 is an apocalyptic number.

It is an amenable number.

509448172 is a deficient number, since it is larger than the sum of its proper divisors (410845524).

509448172 is a wasteful number, since it uses less digits than its factorization.

509448172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108488 (or 4108486 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 509448172 is about 22570.9585972772. The cubic root of 509448172 is about 798.6687087250.

The spelling of 509448172 in words is "five hundred nine million, four hundred forty-eight thousand, one hundred seventy-two".