18098194 has 16 divisors (see below), whose sum is σ = 28600128. Its totient is φ = 8572432.

The previous prime is 18098177. The next prime is 18098209. The reversal of 18098194 is 49189081.

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 7 ways as a sum of consecutive naturals, for example, 3084 + ... + 6760.

It is an arithmetic number, because the mean of its divisors is an integer number (1787508).

Almost surely, 2^18098194 is an apocalyptic number.

18098194 is a deficient number, since it is larger than the sum of its proper divisors (10501934).

18098194 is a wasteful number, since it uses less digits than its factorization.

18098194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 18098194 is about 4254.1972215684. The cubic root of 18098194 is about 262.5498330183.

The spelling of 18098194 in words is "eighteen million, ninety-eight thousand, one hundred ninety-four".