22272356 has 12 divisors (see below), whose sum is σ = 39070080. Its totient is φ = 11109480.

The previous prime is 22272347. The next prime is 22272359. The reversal of 22272356 is 65327222.

It is not an unprimeable number, because it can be changed into a prime (22272359) 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, 4736 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (3255840).

Almost surely, 2^22272356 is an apocalyptic number.

It is an amenable number.

22272356 is a deficient number, since it is larger than the sum of its proper divisors (16797724).

22272356 is a wasteful number, since it uses less digits than its factorization.

22272356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13354 (or 13352 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 22272356 is about 4719.3597023325. The cubic root of 22272356 is about 281.3554853043.

Adding to 22272356 its reverse (65327222), we get a palindrome (87599578).

The spelling of 22272356 in words is "twenty-two million, two hundred seventy-two thousand, three hundred fifty-six".