22971628 has 12 divisors (see below), whose sum is σ = 40471200. Its totient is φ = 11408432.

The previous prime is 22971601. The next prime is 22971629. The reversal of 22971628 is 82617922.

It is not an unprimeable number, because it can be changed into a prime (22971629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18676 + ... + 19867.

It is an arithmetic number, because the mean of its divisors is an integer number (3372600).

Almost surely, 2^22971628 is an apocalyptic number.

It is an amenable number.

22971628 is a deficient number, since it is larger than the sum of its proper divisors (17499572).

22971628 is a wasteful number, since it uses less digits than its factorization.

22971628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38696 (or 38694 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 22971628 is about 4792.8726250548. The cubic root of 22971628 is about 284.2697133563.

The spelling of 22971628 in words is "twenty-two million, nine hundred seventy-one thousand, six hundred twenty-eight".