22971328 has 28 divisors (see below), whose sum is σ = 45904912. Its totient is φ = 11404800.

The previous prime is 22971307. The next prime is 22971343. The reversal of 22971328 is 82317922.

It is a junction number, because it is equal to n+sod(n) for n = 22971293 and 22971302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8476 + ... + 10852.

Almost surely, 2^22971328 is an apocalyptic number.

It is an amenable number.

22971328 is a deficient number, since it is larger than the sum of its proper divisors (22933584).

22971328 is a wasteful number, since it uses less digits than its factorization.

22971328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540 (or 2530 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 22971328 is about 4792.8413284815. The cubic root of 22971328 is about 284.2684758691.

The spelling of 22971328 in words is "twenty-two million, nine hundred seventy-one thousand, three hundred twenty-eight".