22443272 has 16 divisors (see below), whose sum is σ = 42156240. Its totient is φ = 11201616.

The previous prime is 22443257. The next prime is 22443301. The reversal of 22443272 is 27234422.

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, 2963 + ... + 7325.

It is an arithmetic number, because the mean of its divisors is an integer number (2634765).

Almost surely, 2^22443272 is an apocalyptic number.

It is an amenable number.

22443272 is a deficient number, since it is larger than the sum of its proper divisors (19712968).

22443272 is a wasteful number, since it uses less digits than its factorization.

22443272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012 (or 5008 counting only the distinct ones).

The product of its digits is 5376, while the sum is 26.

The square root of 22443272 is about 4737.4330602131. The cubic root of 22443272 is about 282.0733508033.

Adding to 22443272 its reverse (27234422), we get a palindrome (49677694).

The spelling of 22443272 in words is "twenty-two million, four hundred forty-three thousand, two hundred seventy-two".