18044712 has 48 divisors (see below), whose sum is σ = 55854240. Its totient is φ = 5155488.

The previous prime is 18044683. The next prime is 18044717. The reversal of 18044712 is 21744081.

It is a super-2 number, since 2×18044712² = 651223262325888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18044717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17398 + ... + 18405.

It is an arithmetic number, because the mean of its divisors is an integer number (1163630).

Almost surely, 2^18044712 is an apocalyptic number.

18044712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18044712 is an abundant number, since it is smaller than the sum of its proper divisors (37809528).

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

18044712 is a wasteful number, since it uses less digits than its factorization.

18044712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35822 (or 35815 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 18044712 is about 4247.9067786382. The cubic root of 18044712 is about 262.2909573820.

Adding to 18044712 its reverse (21744081), we get a palindrome (39788793).

The spelling of 18044712 in words is "eighteen million, forty-four thousand, seven hundred twelve".