18026198 has 8 divisors (see below), whose sum is σ = 27181440. Its totient is φ = 8965720.

The previous prime is 18026179. The next prime is 18026213. The reversal of 18026198 is 89162081.

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

It is a congruent 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, 23213 + ... + 23976.

It is an arithmetic number, because the mean of its divisors is an integer number (3397680).

Almost surely, 2^18026198 is an apocalyptic number.

18026198 is a deficient number, since it is larger than the sum of its proper divisors (9155242).

18026198 is a wasteful number, since it uses less digits than its factorization.

18026198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47382.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 18026198 is about 4245.7270284369. The cubic root of 18026198 is about 262.2012225701.

It can be divided in two parts, 1802 and 6198, that added together give a cube (8000 = 20³).

The spelling of 18026198 in words is "eighteen million, twenty-six thousand, one hundred ninety-eight".