22136272 has 10 divisors (see below), whose sum is σ = 42889058. Its totient is φ = 11068128.

The previous prime is 22136243. The next prime is 22136291. The reversal of 22136272 is 27263122.

It can be written as a sum of positive squares in only one way, i.e., 14318656 + 7817616 = 3784^2 + 2796^2 .

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 as a sum of consecutive naturals, namely, 691743 + ... + 691774.

Almost surely, 2^22136272 is an apocalyptic number.

It is an amenable number.

22136272 is a deficient number, since it is larger than the sum of its proper divisors (20752786).

22136272 is a wasteful number, since it uses less digits than its factorization.

22136272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383525 (or 1383519 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 22136272 is about 4704.9199780655. The cubic root of 22136272 is about 280.7812873248.

Adding to 22136272 its reverse (27263122), we get a palindrome (49399394).

The spelling of 22136272 in words is "twenty-two million, one hundred thirty-six thousand, two hundred seventy-two".