22127972 has 24 divisors (see below), whose sum is σ = 39975936. Its totient is φ = 10711008.

The previous prime is 22127947. The next prime is 22128011. The reversal of 22127972 is 27972122.

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 7 ways as a sum of consecutive naturals, for example, 21338 + ... + 22350.

It is an arithmetic number, because the mean of its divisors is an integer number (1665664).

Almost surely, 2^22127972 is an apocalyptic number.

It is an amenable number.

22127972 is a deficient number, since it is larger than the sum of its proper divisors (17847964).

22127972 is a wasteful number, since it uses less digits than its factorization.

22127972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187 (or 1185 counting only the distinct ones).

The product of its digits is 7056, while the sum is 32.

The square root of 22127972 is about 4704.0378399839. The cubic root of 22127972 is about 280.7461899363.

The spelling of 22127972 in words is "twenty-two million, one hundred twenty-seven thousand, nine hundred seventy-two".