18630275 has 12 divisors (see below), whose sum is σ = 23157744. Its totient is φ = 14868000.

The previous prime is 18630259. The next prime is 18630301. The reversal of 18630275 is 57203681.

It is a happy number.

It is not a de Polignac number, because 18630275 - 2⁴ = 18630259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15185 + ... + 16365.

It is an arithmetic number, because the mean of its divisors is an integer number (1929812).

Almost surely, 2^18630275 is an apocalyptic number.

18630275 is a deficient number, since it is larger than the sum of its proper divisors (4527469).

18630275 is a wasteful number, since it uses less digits than its factorization.

18630275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1817 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 18630275 is about 4316.2802272327. The cubic root of 18630275 is about 265.0979820419.

The spelling of 18630275 in words is "eighteen million, six hundred thirty thousand, two hundred seventy-five".