18042995 has 8 divisors (see below), whose sum is σ = 21708000. Its totient is φ = 14396800.

The previous prime is 18042979. The next prime is 18043009. The reversal of 18042995 is 59924081.

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

It is not a de Polignac number, because 18042995 - 2⁴ = 18042979 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, 2495 + ... + 6504.

It is an arithmetic number, because the mean of its divisors is an integer number (2713500).

Almost surely, 2^18042995 is an apocalyptic number.

18042995 is a deficient number, since it is larger than the sum of its proper divisors (3665005).

18042995 is an equidigital number, since it uses as much as digits as its factorization.

18042995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 18042995 is about 4247.7046742918. The cubic root of 18042995 is about 262.2826379021.

The spelling of 18042995 in words is "eighteen million, forty-two thousand, nine hundred ninety-five".