18222182 has 16 divisors (see below), whose sum is σ = 30454272. Its totient is φ = 8106120.

The previous prime is 18222173. The next prime is 18222223. The reversal of 18222182 is 28122281.

It is a super-2 number, since 2×18222182² = 664095833682248, which contains 22 as substring.

It is a congruent number.

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, 7778 + ... + 9845.

It is an arithmetic number, because the mean of its divisors is an integer number (1903392).

Almost surely, 2^18222182 is an apocalyptic number.

18222182 is a deficient number, since it is larger than the sum of its proper divisors (12232090).

18222182 is a wasteful number, since it uses less digits than its factorization.

18222182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17683.

The product of its digits is 1024, while the sum is 26.

The square root of 18222182 is about 4268.7447803775. The cubic root of 18222182 is about 263.1480321483.

Subtracting 18222182 from its reverse (28122281), we obtain a palindrome (9900099).

It can be divided in two parts, 1822 and 2182, that added together give a palindrome (4004).

The spelling of 18222182 in words is "eighteen million, two hundred twenty-two thousand, one hundred eighty-two".