18024144 has 40 divisors (see below), whose sum is σ = 48068352. Its totient is φ = 5813760.

The previous prime is 18024137. The next prime is 18024151. The reversal of 18024144 is 44142081.

It is an interprime number because it is at equal distance from previous prime (18024137) and next prime (18024151).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4569 + ... + 7544.

Almost surely, 2^18024144 is an apocalyptic number.

It is an amenable number.

18024144 is an abundant number, since it is smaller than the sum of its proper divisors (30044208).

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

18024144 is a wasteful number, since it uses less digits than its factorization.

18024144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12155 (or 12149 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 18024144 is about 4245.4851312895. The cubic root of 18024144 is about 262.1912633288.

The spelling of 18024144 in words is "eighteen million, twenty-four thousand, one hundred forty-four".