18024244 has 12 divisors (see below), whose sum is σ = 36048544. Its totient is φ = 7724664.

The previous prime is 18024239. The next prime is 18024247. The reversal of 18024244 is 44242081.

18024244 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18024247) 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, 321834 + ... + 321889.

Almost surely, 2^18024244 is an apocalyptic number.

18024244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18024244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18024244 is a wasteful number, since it uses less digits than its factorization.

18024244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643734 (or 643732 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 18024244 is about 4245.4969084902. The cubic root of 18024244 is about 262.1917482168.

The spelling of 18024244 in words is "eighteen million, twenty-four thousand, two hundred forty-four".