18224182 has 4 divisors (see below), whose sum is σ = 27336276. Its totient is φ = 9112090.

The previous prime is 18224161. The next prime is 18224189. The reversal of 18224182 is 28142281.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18224182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18224189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4556044 + ... + 4556047.

It is an arithmetic number, because the mean of its divisors is an integer number (6834069).

Almost surely, 2^18224182 is an apocalyptic number.

18224182 is a deficient number, since it is larger than the sum of its proper divisors (9112094).

18224182 is an equidigital number, since it uses as much as digits as its factorization.

18224182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112093.

The product of its digits is 2048, while the sum is 28.

The square root of 18224182 is about 4268.9790348513. The cubic root of 18224182 is about 263.1576591844.

The spelling of 18224182 in words is "eighteen million, two hundred twenty-four thousand, one hundred eighty-two".