18098265 has 16 divisors (see below), whose sum is σ = 29892096. Its totient is φ = 9340800.

The previous prime is 18098257. The next prime is 18098287. The reversal of 18098265 is 56289081.

It is not a de Polignac number, because 18098265 - 2³ = 18098257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18996 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (1868256).

Almost surely, 2^18098265 is an apocalyptic number.

18098265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18098265 is a deficient number, since it is larger than the sum of its proper divisors (11793831).

18098265 is a wasteful number, since it uses less digits than its factorization.

18098265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38960.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 18098265 is about 4254.2055662603. The cubic root of 18098265 is about 262.5501763493.

The spelling of 18098265 in words is "eighteen million, ninety-eight thousand, two hundred sixty-five".