18168098 has 8 divisors (see below), whose sum is σ = 29348508. Its totient is φ = 8385264.

The previous prime is 18168083. The next prime is 18168109. The reversal of 18168098 is 89086181.

It can be written as a sum of positive squares in 2 ways, for example, as 18088009 + 80089 = 4253^2 + 283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349361 + ... + 349412.

Almost surely, 2^18168098 is an apocalyptic number.

18168098 is a deficient number, since it is larger than the sum of its proper divisors (11180410).

18168098 is a wasteful number, since it uses less digits than its factorization.

18168098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698788.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 18168098 is about 4262.4051895614. The cubic root of 18168098 is about 262.8874303193.

The spelling of 18168098 in words is "eighteen million, one hundred sixty-eight thousand, ninety-eight".