22442065 has 8 divisors (see below), whose sum is σ = 27028008. Its totient is φ = 17888640.

The previous prime is 22442029. The next prime is 22442081. The reversal of 22442065 is 56024422.

It can be written as a sum of positive squares in 4 ways, for example, as 5934096 + 16507969 = 2436^2 + 4063^2 .

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

It is not a de Polignac number, because 22442065 - 2¹⁵ = 22409297 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 7 ways as a sum of consecutive naturals, for example, 6582 + ... + 9391.

It is an arithmetic number, because the mean of its divisors is an integer number (3378501).

Almost surely, 2^22442065 is an apocalyptic number.

It is an amenable number.

22442065 is a deficient number, since it is larger than the sum of its proper divisors (4585943).

22442065 is a wasteful number, since it uses less digits than its factorization.

22442065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16259.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22442065 is about 4737.3056688375. The cubic root of 22442065 is about 282.0682940742.

Adding to 22442065 its reverse (56024422), we get a palindrome (78466487).

The spelling of 22442065 in words is "twenty-two million, four hundred forty-two thousand, sixty-five".