22643194 has 12 divisors (see below), whose sum is σ = 39510234. Its totient is φ = 9704184.

The previous prime is 22643189. The next prime is 22643209. The reversal of 22643194 is 49134622.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 974169 = 4655^2 + 987^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115429 + ... + 115624.

Almost surely, 2^22643194 is an apocalyptic number.

22643194 is a deficient number, since it is larger than the sum of its proper divisors (16867040).

22643194 is a wasteful number, since it uses less digits than its factorization.

22643194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231069 (or 231062 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 22643194 is about 4758.4865240957. The cubic root of 22643194 is about 282.9084347105.

The spelling of 22643194 in words is "twenty-two million, six hundred forty-three thousand, one hundred ninety-four".