18418322 has 16 divisors (see below), whose sum is σ = 30020760. Its totient is φ = 8424192.

The previous prime is 18418303. The next prime is 18418339. The reversal of 18418322 is 22381481.

It can be written as a sum of positive squares in 4 ways, for example, as 5248681 + 13169641 = 2291^2 + 3629^2 .

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, 197 + ... + 6072.

Almost surely, 2^18418322 is an apocalyptic number.

18418322 is a deficient number, since it is larger than the sum of its proper divisors (11602438).

18418322 is a wasteful number, since it uses less digits than its factorization.

18418322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397.

The product of its digits is 3072, while the sum is 29.

The square root of 18418322 is about 4291.6572556531. The cubic root of 18418322 is about 264.0888226529.

The spelling of 18418322 in words is "eighteen million, four hundred eighteen thousand, three hundred twenty-two".