18094039 has 4 divisors (see below), whose sum is σ = 18169360. Its totient is φ = 18018720.

The previous prime is 18094033. The next prime is 18094051. The reversal of 18094039 is 93049081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18094039 - 2⁵ = 18094007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18093995 and 18094013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18094033) 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 3 ways as a sum of consecutive naturals, for example, 37299 + ... + 37780.

It is an arithmetic number, because the mean of its divisors is an integer number (4542340).

Almost surely, 2^18094039 is an apocalyptic number.

18094039 is a deficient number, since it is larger than the sum of its proper divisors (75321).

18094039 is an equidigital number, since it uses as much as digits as its factorization.

18094039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75320.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 18094039 is about 4253.7088522841. The cubic root of 18094039 is about 262.5297393366.

The spelling of 18094039 in words is "eighteen million, ninety-four thousand, thirty-nine".