22444145 has 8 divisors (see below), whose sum is σ = 27506304. Its totient is φ = 17573104.

The previous prime is 22444127. The next prime is 22444153. The reversal of 22444145 is 54144422.

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 22444145 - 2¹⁰ = 22443121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47519 + ... + 47988.

It is an arithmetic number, because the mean of its divisors is an integer number (3438288).

Almost surely, 2^22444145 is an apocalyptic number.

It is an amenable number.

22444145 is a deficient number, since it is larger than the sum of its proper divisors (5062159).

22444145 is an equidigital number, since it uses as much as digits as its factorization.

22444145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95559.

The product of its digits is 5120, while the sum is 26.

The square root of 22444145 is about 4737.5251978222. The cubic root of 22444145 is about 282.0770081256.

Adding to 22444145 its reverse (54144422), we get a palindrome (76588567).

The spelling of 22444145 in words is "twenty-two million, four hundred forty-four thousand, one hundred forty-five".