22442305 has 4 divisors (see below), whose sum is σ = 26930772. Its totient is φ = 17953840.

The previous prime is 22442281. The next prime is 22442311. The reversal of 22442305 is 50324422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8334769 + 14107536 = 2887^2 + 3756^2 .

It is not a de Polignac number, because 22442305 - 2¹⁵ = 22409537 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244226 + ... + 2244235.

It is an arithmetic number, because the mean of its divisors is an integer number (6732693).

Almost surely, 2^22442305 is an apocalyptic number.

It is an amenable number.

22442305 is a deficient number, since it is larger than the sum of its proper divisors (4488467).

22442305 is an equidigital number, since it uses as much as digits as its factorization.

22442305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488466.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22442305 is about 4737.3309996242. The cubic root of 22442305 is about 282.0692995691.

Adding to 22442305 its reverse (50324422), we get a palindrome (72766727).

The spelling of 22442305 in words is "twenty-two million, four hundred forty-two thousand, three hundred five".