18422193 has 8 divisors (see below), whose sum is σ = 24584800. Its totient is φ = 12270528.

The previous prime is 18422171. The next prime is 18422197. The reversal of 18422193 is 39122481.

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

It is not a de Polignac number, because 18422193 - 2⁹ = 18421681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18422193.

It is not an unprimeable number, because it can be changed into a prime (18422197) 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, 2793 + ... + 6681.

It is an arithmetic number, because the mean of its divisors is an integer number (3073100).

Almost surely, 2^18422193 is an apocalyptic number.

It is an amenable number.

18422193 is a deficient number, since it is larger than the sum of its proper divisors (6162607).

18422193 is a wasteful number, since it uses less digits than its factorization.

18422193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471.

The product of its digits is 3456, while the sum is 30.

The square root of 18422193 is about 4292.1082232395. The cubic root of 18422193 is about 264.1073226411.

The spelling of 18422193 in words is "eighteen million, four hundred twenty-two thousand, one hundred ninety-three".