22006634 has 16 divisors (see below), whose sum is σ = 35626920. Its totient is φ = 10134720.

The previous prime is 22006613. The next prime is 22006639. The reversal of 22006634 is 43660022.

It can be written as a sum of positive squares in 4 ways, for example, as 16785409 + 5221225 = 4097^2 + 2285^2 .

It is not an unprimeable number, because it can be changed into a prime (22006639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21044 + ... + 22064.

Almost surely, 2^22006634 is an apocalyptic number.

22006634 is a deficient number, since it is larger than the sum of its proper divisors (13620286).

22006634 is a wasteful number, since it uses less digits than its factorization.

22006634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22006634 is about 4691.1228932954. The cubic root of 22006634 is about 280.2320949758.

Adding to 22006634 its reverse (43660022), we get a palindrome (65666656).

The spelling of 22006634 in words is "twenty-two million, six thousand, six hundred thirty-four".