18126994 has 16 divisors (see below), whose sum is σ = 28052640. Its totient is φ = 8779680.

The previous prime is 18126989. The next prime is 18127019. The reversal of 18126994 is 49962181.

It is a super-2 number, since 2×18126994² = 657175822952072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10462 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (1753290).

Almost surely, 2^18126994 is an apocalyptic number.

18126994 is a deficient number, since it is larger than the sum of its proper divisors (9925646).

18126994 is a wasteful number, since it uses less digits than its factorization.

18126994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785.

The product of its digits is 31104, while the sum is 40.

The square root of 18126994 is about 4257.5807684646. The cubic root of 18126994 is about 262.6890260569.

The spelling of 18126994 in words is "eighteen million, one hundred twenty-six thousand, nine hundred ninety-four".