22247656 has 16 divisors (see below), whose sum is σ = 42842340. Its totient is φ = 10823040.

The previous prime is 22247653. The next prime is 22247671. The reversal of 22247656 is 65674222.

It can be written as a sum of positive squares in 2 ways, for example, as 21771556 + 476100 = 4666^2 + 690^2 .

It is not an unprimeable number, because it can be changed into a prime (22247653) 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, 37285 + ... + 37876.

Almost surely, 2^22247656 is an apocalyptic number.

It is an amenable number.

22247656 is a deficient number, since it is larger than the sum of its proper divisors (20594684).

22247656 is a wasteful number, since it uses less digits than its factorization.

22247656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75204 (or 75200 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 22247656 is about 4716.7420959811. The cubic root of 22247656 is about 281.2514392684.

The spelling of 22247656 in words is "twenty-two million, two hundred forty-seven thousand, six hundred fifty-six".