18434222 has 8 divisors (see below), whose sum is σ = 29277936. Its totient is φ = 8674912.

The previous prime is 18434209. The next prime is 18434249. The reversal of 18434222 is 22243481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18434191 and 18434200.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 271058 + ... + 271125.

It is an arithmetic number, because the mean of its divisors is an integer number (3659742).

Almost surely, 2^18434222 is an apocalyptic number.

18434222 is a deficient number, since it is larger than the sum of its proper divisors (10843714).

18434222 is a wasteful number, since it uses less digits than its factorization.

18434222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542202.

The product of its digits is 3072, while the sum is 26.

The square root of 18434222 is about 4293.5092872847. The cubic root of 18434222 is about 264.1647941875.

The spelling of 18434222 in words is "eighteen million, four hundred thirty-four thousand, two hundred twenty-two".