18000995 has 8 divisors (see below), whose sum is σ = 21624000. Its totient is φ = 14385600.

The previous prime is 18000989. The next prime is 18001031. The reversal of 18000995 is 59900081.

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

It is not a de Polignac number, because 18000995 - 2²² = 13806691 is a prime.

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, 8006 + ... + 10004.

It is an arithmetic number, because the mean of its divisors is an integer number (2703000).

Almost surely, 2^18000995 is an apocalyptic number.

18000995 is a deficient number, since it is larger than the sum of its proper divisors (3623005).

18000995 is a wasteful number, since it uses less digits than its factorization.

18000995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 18000995 is about 4242.7579473734. The cubic root of 18000995 is about 262.0789682906.

The spelling of 18000995 in words is "eighteen million, nine hundred ninety-five", and thus it is an aban number.