18093249 has 12 divisors (see below), whose sum is σ = 27271296. Its totient is φ = 11537592.

The previous prime is 18093227. The next prime is 18093293. The reversal of 18093249 is 94239081.

It is not a de Polignac number, because 18093249 - 2⁸ = 18092993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18093749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43497 + ... + 43910.

It is an arithmetic number, because the mean of its divisors is an integer number (2272608).

Almost surely, 2^18093249 is an apocalyptic number.

It is an amenable number.

18093249 is a deficient number, since it is larger than the sum of its proper divisors (9178047).

18093249 is a wasteful number, since it uses less digits than its factorization.

18093249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87436 (or 87433 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 18093249 is about 4253.6159911304. The cubic root of 18093249 is about 262.5259185292.

The spelling of 18093249 in words is "eighteen million, ninety-three thousand, two hundred forty-nine".