22048865 has 4 divisors (see below), whose sum is σ = 26458644. Its totient is φ = 17639088.

The previous prime is 22048861. The next prime is 22048889. The reversal of 22048865 is 56884022.

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 11751184 + 10297681 = 3428^2 + 3209^2 .

It is a cyclic number.

It is not a de Polignac number, because 22048865 - 2² = 22048861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22048861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2204882 + ... + 2204891.

It is an arithmetic number, because the mean of its divisors is an integer number (6614661).

Almost surely, 2^22048865 is an apocalyptic number.

It is an amenable number.

22048865 is a deficient number, since it is larger than the sum of its proper divisors (4409779).

22048865 is an equidigital number, since it uses as much as digits as its factorization.

22048865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409778.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 22048865 is about 4695.6218970441. The cubic root of 22048865 is about 280.4112367063.

The spelling of 22048865 in words is "twenty-two million, forty-eight thousand, eight hundred sixty-five".