22636243 has 8 divisors (see below), whose sum is σ = 25912160. Its totient is φ = 19370880.

The previous prime is 22636241. The next prime is 22636249. The reversal of 22636243 is 34263622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22636243 - 2¹ = 22636241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22636241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (3239020).

Almost surely, 2^22636243 is an apocalyptic number.

22636243 is a deficient number, since it is larger than the sum of its proper divisors (3275917).

22636243 is an equidigital number, since it uses as much as digits as its factorization.

22636243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277.

The product of its digits is 10368, while the sum is 28.

The square root of 22636243 is about 4757.7560887460. The cubic root of 22636243 is about 282.8794827027.

Adding to 22636243 its reverse (34263622), we get a palindrome (56899865).

It can be divided in two parts, 226 and 36243, that multiplied together give a palindrome (8190918).

The spelling of 22636243 in words is "twenty-two million, six hundred thirty-six thousand, two hundred forty-three".