18422668 has 24 divisors (see below), whose sum is σ = 35315280. Its totient is φ = 8339520.

The previous prime is 18422659. The next prime is 18422669. The reversal of 18422668 is 86622481.

It is not an unprimeable number, because it can be changed into a prime (18422669) by changing a digit.

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, 12178 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (1471470).

Almost surely, 2^18422668 is an apocalyptic number.

It is an amenable number.

18422668 is a deficient number, since it is larger than the sum of its proper divisors (16892612).

18422668 is a wasteful number, since it uses less digits than its factorization.

18422668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737 (or 1735 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 18422668 is about 4292.1635569955. The cubic root of 18422668 is about 264.1095925464.

The spelling of 18422668 in words is "eighteen million, four hundred twenty-two thousand, six hundred sixty-eight".