18097344 has 70 divisors (see below), whose sum is σ = 53661564. Its totient is φ = 6030720.

The previous prime is 18097337. The next prime is 18097361. The reversal of 18097344 is 44379081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 18097299 and 18097308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3439 + ... + 6929.

Almost surely, 2^18097344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18097344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26830782).

18097344 is an abundant number, since it is smaller than the sum of its proper divisors (35564220).

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

18097344 is an equidigital number, since it uses as much as digits as its factorization.

18097344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515 (or 3496 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 18097344 is about 4254.0973190561. The cubic root of 18097344 is about 262.5457226477.

The spelling of 18097344 in words is "eighteen million, ninety-seven thousand, three hundred forty-four".