18045386 has 32 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 8268480.

The previous prime is 18045359. The next prime is 18045427. The reversal of 18045386 is 68354081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165500 + ... + 165608.

It is an arithmetic number, because the mean of its divisors is an integer number (920700).

Almost surely, 2^18045386 is an apocalyptic number.

18045386 is a deficient number, since it is larger than the sum of its proper divisors (11417014).

18045386 is a wasteful number, since it uses less digits than its factorization.

18045386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18045386 is about 4247.9861110884. The cubic root of 18045386 is about 262.2942230092.

The spelling of 18045386 in words is "eighteen million, forty-five thousand, three hundred eighty-six".