18275966 has 8 divisors (see below), whose sum is σ = 27863544. Its totient is φ = 8988120.

The previous prime is 18275963. The next prime is 18275977. The reversal of 18275966 is 66957281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18275963) 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, 74780 + ... + 75023.

It is an arithmetic number, because the mean of its divisors is an integer number (3482943).

Almost surely, 2^18275966 is an apocalyptic number.

18275966 is a deficient number, since it is larger than the sum of its proper divisors (9587578).

18275966 is a wasteful number, since it uses less digits than its factorization.

18275966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149866.

The product of its digits is 181440, while the sum is 44.

The square root of 18275966 is about 4275.0398828549. The cubic root of 18275966 is about 263.4066775708.

The spelling of 18275966 in words is "eighteen million, two hundred seventy-five thousand, nine hundred sixty-six".