22643841 has 8 divisors (see below), whose sum is σ = 32936544. Its totient is φ = 13723520.

The previous prime is 22643837. The next prime is 22643851. The reversal of 22643841 is 14834622.

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 22643841 - 2² = 22643837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22643799 and 22643808.

It is not an unprimeable number, because it can be changed into a prime (22643851) 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, 343056 + ... + 343121.

It is an arithmetic number, because the mean of its divisors is an integer number (4117068).

Almost surely, 2^22643841 is an apocalyptic number.

It is an amenable number.

22643841 is a deficient number, since it is larger than the sum of its proper divisors (10292703).

22643841 is a wasteful number, since it uses less digits than its factorization.

22643841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686191.

The product of its digits is 9216, while the sum is 30.

The square root of 22643841 is about 4758.5545074108. The cubic root of 22643841 is about 282.9111292657.

It can be divided in two parts, 2264 and 3841, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 22643841 in words is "twenty-two million, six hundred forty-three thousand, eight hundred forty-one".