18110389 has 8 divisors (see below), whose sum is σ = 20919168. Its totient is φ = 15495360.

The previous prime is 18110383. The next prime is 18110399. The reversal of 18110389 is 98301181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18110389 - 2³ = 18110381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18110389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18110381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48237 + ... + 48610.

It is an arithmetic number, because the mean of its divisors is an integer number (2614896).

Almost surely, 2^18110389 is an apocalyptic number.

It is an amenable number.

18110389 is a deficient number, since it is larger than the sum of its proper divisors (2808779).

18110389 is a wasteful number, since it uses less digits than its factorization.

18110389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96875.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 18110389 is about 4255.6302705945. The cubic root of 18110389 is about 262.6087905831.

The spelling of 18110389 in words is "eighteen million, one hundred ten thousand, three hundred eighty-nine".