18241444 has 48 divisors (see below), whose sum is σ = 37240000. Its totient is φ = 7744896.

The previous prime is 18241439. The next prime is 18241451. The reversal of 18241444 is 44414281.

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, 36307 + ... + 36805.

Almost surely, 2^18241444 is an apocalyptic number.

It is an amenable number.

18241444 is an abundant number, since it is smaller than the sum of its proper divisors (18998556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18241444 is a wasteful number, since it uses less digits than its factorization.

18241444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 570 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 18241444 is about 4271.0003512058. Note that the first 3 decimals coincide. The cubic root of 18241444 is about 263.2407208732.

The spelling of 18241444 in words is "eighteen million, two hundred forty-one thousand, four hundred forty-four".