18045274 has 16 divisors (see below), whose sum is σ = 29772288. Its totient is φ = 8150832.

The previous prime is 18045257. The next prime is 18045283. The reversal of 18045274 is 47254081.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6162 + ... + 8605.

It is an arithmetic number, because the mean of its divisors is an integer number (1860768).

Almost surely, 2^18045274 is an apocalyptic number.

18045274 is a deficient number, since it is larger than the sum of its proper divisors (11727014).

18045274 is a wasteful number, since it uses less digits than its factorization.

18045274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14829.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 18045274 is about 4247.9729283507. The cubic root of 18045274 is about 262.2936803587.

It can be divided in two parts, 180 and 45274, that added together give a palindrome (45454).

The spelling of 18045274 in words is "eighteen million, forty-five thousand, two hundred seventy-four".