18085798 has 8 divisors (see below), whose sum is σ = 27151992. Its totient is φ = 9035136.

The previous prime is 18085789. The next prime is 18085799. The reversal of 18085798 is 89758081.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315 + ... + 6022.

It is an arithmetic number, because the mean of its divisors is an integer number (3393999).

Almost surely, 2^18085798 is an apocalyptic number.

18085798 is a deficient number, since it is larger than the sum of its proper divisors (9066194).

18085798 is a wasteful number, since it uses less digits than its factorization.

18085798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766.

The product of its (nonzero) digits is 161280, while the sum is 46.

The square root of 18085798 is about 4252.7400578921. The cubic root of 18085798 is about 262.4898765559.

The spelling of 18085798 in words is "eighteen million, eighty-five thousand, seven hundred ninety-eight".