18008234 has 8 divisors (see below), whose sum is σ = 27522180. Its totient is φ = 8834176.

The previous prime is 18008231. The next prime is 18008279. The reversal of 18008234 is 43280081.

It can be written as a sum of positive squares in 2 ways, for example, as 17850625 + 157609 = 4225^2 + 397^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18008231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84839 + ... + 85050.

Almost surely, 2^18008234 is an apocalyptic number.

18008234 is a deficient number, since it is larger than the sum of its proper divisors (9513946).

18008234 is a wasteful number, since it uses less digits than its factorization.

18008234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169944.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18008234 is about 4243.6109623763. The cubic root of 18008234 is about 262.1140947821.

The spelling of 18008234 in words is "eighteen million, eight thousand, two hundred thirty-four".