18674249 has 8 divisors (see below), whose sum is σ = 20450880. Its totient is φ = 16910800.

The previous prime is 18674239. The next prime is 18674269. The reversal of 18674249 is 94247681.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18674249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18674219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (2556360).

Almost surely, 2^18674249 is an apocalyptic number.

It is an amenable number.

18674249 is a deficient number, since it is larger than the sum of its proper divisors (1776631).

18674249 is a wasteful number, since it uses less digits than its factorization.

18674249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591.

The product of its digits is 96768, while the sum is 41.

The square root of 18674249 is about 4321.3711944243. The cubic root of 18674249 is about 265.3063929716.

It can be divided in two parts, 1867 and 4249, that added together give a palindrome (6116).

The spelling of 18674249 in words is "eighteen million, six hundred seventy-four thousand, two hundred forty-nine".