22241636 has 6 divisors (see below), whose sum is σ = 38922870. Its totient is φ = 11120816.

The previous prime is 22241623. The next prime is 22241689. The reversal of 22241636 is 63614222.

It can be written as a sum of positive squares in only one way, i.e., 16859236 + 5382400 = 4106^2 + 2320^2 .

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, 2780201 + ... + 2780208.

It is an arithmetic number, because the mean of its divisors is an integer number (6487145).

Almost surely, 2^22241636 is an apocalyptic number.

It is an amenable number.

22241636 is a deficient number, since it is larger than the sum of its proper divisors (16681234).

22241636 is a wasteful number, since it uses less digits than its factorization.

22241636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560413 (or 5560411 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 22241636 is about 4716.1039004670. The cubic root of 22241636 is about 281.2260690091.

Adding to 22241636 its reverse (63614222), we get a palindrome (85855858).

The spelling of 22241636 in words is "twenty-two million, two hundred forty-one thousand, six hundred thirty-six".