18205098 has 32 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 5603136.

The previous prime is 18205081. The next prime is 18205141. The reversal of 18205098 is 89050281.

It is a happy number.

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, 1728 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^18205098 is an apocalyptic number.

18205098 is an abundant number, since it is smaller than the sum of its proper divisors (21106902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18205098 is a wasteful number, since it uses less digits than its factorization.

18205098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606.

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

The square root of 18205098 is about 4266.7432545209. The cubic root of 18205098 is about 263.0657692840.

The spelling of 18205098 in words is "eighteen million, two hundred five thousand, ninety-eight".