22643074 has 4 divisors (see below), whose sum is σ = 33964614. Its totient is φ = 11321536.

The previous prime is 22643039. The next prime is 22643081. The reversal of 22643074 is 47034622.

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

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 10843849 = 3435^2 + 3293^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660767 + ... + 5660770.

Almost surely, 2^22643074 is an apocalyptic number.

22643074 is a deficient number, since it is larger than the sum of its proper divisors (11321540).

22643074 is a wasteful number, since it uses less digits than its factorization.

22643074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321539.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 22643074 is about 4758.4739150278. The cubic root of 22643074 is about 282.9079349419.

Adding to 22643074 its reverse (47034622), we get a palindrome (69677696).

The spelling of 22643074 in words is "twenty-two million, six hundred forty-three thousand, seventy-four".