18275918 has 8 divisors (see below), whose sum is σ = 29026512. Its totient is φ = 8600416.

The previous prime is 18275911. The next prime is 18275923. The reversal of 18275918 is 81957281.

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 (18275911) 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, 268730 + ... + 268797.

It is an arithmetic number, because the mean of its divisors is an integer number (3628314).

Almost surely, 2^18275918 is an apocalyptic number.

18275918 is a deficient number, since it is larger than the sum of its proper divisors (10750594).

18275918 is a wasteful number, since it uses less digits than its factorization.

18275918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537546.

The product of its digits is 40320, while the sum is 41.

The square root of 18275918 is about 4275.0342688685. The cubic root of 18275918 is about 263.4064469668.

The spelling of 18275918 in words is "eighteen million, two hundred seventy-five thousand, nine hundred eighteen".