18098205 has 16 divisors (see below), whose sum is σ = 29113344. Its totient is φ = 9600320.

The previous prime is 18098177. The next prime is 18098209. The reversal of 18098205 is 50289081.

It is a happy number.

It is not a de Polignac number, because 18098205 - 2⁵ = 18098173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18098209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294 + ... + 6023.

It is an arithmetic number, because the mean of its divisors is an integer number (1819584).

Almost surely, 2^18098205 is an apocalyptic number.

18098205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18098205 is a deficient number, since it is larger than the sum of its proper divisors (11015139).

18098205 is a wasteful number, since it uses less digits than its factorization.

18098205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 18098205 is about 4254.1985144090. The cubic root of 18098205 is about 262.5498862105.

The spelling of 18098205 in words is "eighteen million, ninety-eight thousand, two hundred five".