18206085 has 32 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 9108288.

The previous prime is 18206077. The next prime is 18206117. The reversal of 18206085 is 58060281.

It is not a de Polignac number, because 18206085 - 2³ = 18206077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35944 + ... + 36446.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^18206085 is an apocalyptic number.

18206085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18206085 is a deficient number, since it is larger than the sum of its proper divisors (12759675).

18206085 is a wasteful number, since it uses less digits than its factorization.

18206085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 18206085 is about 4266.8589149397. The cubic root of 18206085 is about 263.0705232861.

The spelling of 18206085 in words is "eighteen million, two hundred six thousand, eighty-five".