22264705 has 4 divisors (see below), whose sum is σ = 26717652. Its totient is φ = 17811760.

The previous prime is 22264691. The next prime is 22264709. The reversal of 22264705 is 50746222.

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 17564481 + 4700224 = 4191^2 + 2168^2 .

It is not a de Polignac number, because 22264705 - 2¹⁷ = 22133633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22264709) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2226466 + ... + 2226475.

It is an arithmetic number, because the mean of its divisors is an integer number (6679413).

Almost surely, 2^22264705 is an apocalyptic number.

It is an amenable number.

22264705 is a deficient number, since it is larger than the sum of its proper divisors (4452947).

22264705 is an equidigital number, since it uses as much as digits as its factorization.

22264705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452946.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 22264705 is about 4718.5490354557. The cubic root of 22264705 is about 281.3232645346.

The spelling of 22264705 in words is "twenty-two million, two hundred sixty-four thousand, seven hundred five".