18222622 has 32 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 8004000.

The previous prime is 18222613. The next prime is 18222667. The reversal of 18222622 is 22622281.

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 15 ways as a sum of consecutive naturals, for example, 131029 + ... + 131167.

It is an arithmetic number, because the mean of its divisors is an integer number (963900).

Almost surely, 2^18222622 is an apocalyptic number.

18222622 is a deficient number, since it is larger than the sum of its proper divisors (12622178).

18222622 is a wasteful number, since it uses less digits than its factorization.

18222622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312.

The product of its digits is 1536, while the sum is 25.

The square root of 18222622 is about 4268.7963174647. The cubic root of 18222622 is about 263.1501501566.

It can be divided in two parts, 1822 and 2622, that added together give a palindrome (4444).

The spelling of 18222622 in words is "eighteen million, two hundred twenty-two thousand, six hundred twenty-two".