18744112 has 20 divisors (see below), whose sum is σ = 36727560. Its totient is φ = 9266048.

The previous prime is 18744109. The next prime is 18744113. The reversal of 18744112 is 21144781.

It is not an unprimeable number, because it can be changed into a prime (18744113) 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, 5158 + ... + 8005.

It is an arithmetic number, because the mean of its divisors is an integer number (1836378).

Almost surely, 2^18744112 is an apocalyptic number.

It is an amenable number.

18744112 is a deficient number, since it is larger than the sum of its proper divisors (17983448).

18744112 is a wasteful number, since it uses less digits than its factorization.

18744112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13260 (or 13254 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 18744112 is about 4329.4470778611. The cubic root of 18744112 is about 265.6368307902.

Adding to 18744112 its reverse (21144781), we get a palindrome (39888893).

The spelling of 18744112 in words is "eighteen million, seven hundred forty-four thousand, one hundred twelve".