18046144 has 14 divisors (see below), whose sum is σ = 35810444. Its totient is φ = 9023040.

The previous prime is 18046139. The next prime is 18046151. The reversal of 18046144 is 44164081.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140922 + ... + 141049.

Almost surely, 2^18046144 is an apocalyptic number.

It is an amenable number.

18046144 is a deficient number, since it is larger than the sum of its proper divisors (17764300).

18046144 is an equidigital number, since it uses as much as digits as its factorization.

18046144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281983 (or 281973 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 18046144 is about 4248.0753288990. The cubic root of 18046144 is about 262.2978955313.

The spelling of 18046144 in words is "eighteen million, forty-six thousand, one hundred forty-four".