18968275 has 6 divisors (see below), whose sum is σ = 23520692. Its totient is φ = 15174600.

The previous prime is 18968231. The next prime is 18968317. The reversal of 18968275 is 57286981.

It is not a de Polignac number, because 18968275 - 2⁹ = 18967763 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379341 + ... + 379390.

Almost surely, 2^18968275 is an apocalyptic number.

18968275 is a deficient number, since it is larger than the sum of its proper divisors (4552417).

18968275 is an equidigital number, since it uses as much as digits as its factorization.

18968275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758741 (or 758736 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 18968275 is about 4355.2583161048. The cubic root of 18968275 is about 266.6915645156.

The spelling of 18968275 in words is "eighteen million, nine hundred sixty-eight thousand, two hundred seventy-five".