22444505 has 8 divisors (see below), whose sum is σ = 28517832. Its totient is φ = 16899328.

The previous prime is 22444483. The next prime is 22444547. The reversal of 22444505 is 50544422.

It can be written as a sum of positive squares in 4 ways, for example, as 3268864 + 19175641 = 1808^2 + 4379^2 .

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 22444505 - 2⁶ = 22444441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131942 + ... + 132111.

It is an arithmetic number, because the mean of its divisors is an integer number (3564729).

Almost surely, 2^22444505 is an apocalyptic number.

It is an amenable number.

22444505 is a deficient number, since it is larger than the sum of its proper divisors (6073327).

22444505 is a wasteful number, since it uses less digits than its factorization.

22444505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264075.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 22444505 is about 4737.5631921907. The cubic root of 22444505 is about 282.0785162722.

Adding to 22444505 its reverse (50544422), we get a palindrome (72988927).

The spelling of 22444505 in words is "twenty-two million, four hundred forty-four thousand, five hundred five".