18000834 has 16 divisors (see below), whose sum is σ = 36065088. Its totient is φ = 5989712.

The previous prime is 18000821. The next prime is 18000869. The reversal of 18000834 is 43800081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (2254068).

Almost surely, 2^18000834 is an apocalyptic number.

18000834 is an abundant number, since it is smaller than the sum of its proper divisors (18064254).

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

18000834 is a wasteful number, since it uses less digits than its factorization.

18000834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18000834 is about 4242.7389738234. The cubic root of 18000834 is about 262.0781869479.

The spelling of 18000834 in words is "eighteen million, eight hundred thirty-four", and thus it is an aban number.