18098368 has 28 divisors (see below), whose sum is σ = 36530280. Its totient is φ = 8893952.

The previous prime is 18098363. The next prime is 18098411. The reversal of 18098368 is 86389081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18098363) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1380 + ... + 6172.

Almost surely, 2^18098368 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 18098368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18265140).

18098368 is an abundant number, since it is smaller than the sum of its proper divisors (18431912).

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

18098368 is an equidigital number, since it uses as much as digits as its factorization.

18098368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4864 (or 4854 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 18098368 is about 4254.2176719110. The cubic root of 18098368 is about 262.5506744195.

The spelling of 18098368 in words is "eighteen million, ninety-eight thousand, three hundred sixty-eight".