18041444 has 12 divisors (see below), whose sum is σ = 31613568. Its totient is φ = 9009000.

The previous prime is 18041383. The next prime is 18041449. The reversal of 18041444 is 44414081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18041449) 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, 1169 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (2634464).

Almost surely, 2^18041444 is an apocalyptic number.

It is an amenable number.

18041444 is a deficient number, since it is larger than the sum of its proper divisors (13572124).

18041444 is a wasteful number, since it uses less digits than its factorization.

18041444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866 (or 5864 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 18041444 is about 4247.5221011785. The cubic root of 18041444 is about 262.2751222979.

The spelling of 18041444 in words is "eighteen million, forty-one thousand, four hundred forty-four".