22661441 has 8 divisors (see below), whose sum is σ = 25574400. Its totient is φ = 19890640.

The previous prime is 22661437. The next prime is 22661449. The reversal of 22661441 is 14416622.

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

It is not a de Polignac number, because 22661441 - 2² = 22661437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22661441.

It is not an unprimeable number, because it can be changed into a prime (22661449) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 35201 + ... + 35838.

It is an arithmetic number, because the mean of its divisors is an integer number (3196800).

Almost surely, 2^22661441 is an apocalyptic number.

It is an amenable number.

22661441 is a deficient number, since it is larger than the sum of its proper divisors (2912959).

22661441 is a wasteful number, since it uses less digits than its factorization.

22661441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71079.

The product of its digits is 2304, while the sum is 26.

The square root of 22661441 is about 4760.4034492887. The cubic root of 22661441 is about 282.9844081526.

The spelling of 22661441 in words is "twenty-two million, six hundred sixty-one thousand, four hundred forty-one".