22283809 has 4 divisors (see below), whose sum is σ = 22314004. Its totient is φ = 22253616.

The previous prime is 22283791. The next prime is 22283837. The reversal of 22283809 is 90838222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90838222 = 2 ⋅45419111.

It can be written as a sum of positive squares in 2 ways, for example, as 18662400 + 3621409 = 4320^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 22283809 - 2¹¹ = 22281761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22283309) 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, 13962 + ... + 15475.

It is an arithmetic number, because the mean of its divisors is an integer number (5578501).

Almost surely, 2^22283809 is an apocalyptic number.

It is an amenable number.

22283809 is a deficient number, since it is larger than the sum of its proper divisors (30195).

22283809 is an equidigital number, since it uses as much as digits as its factorization.

22283809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30194.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 22283809 is about 4720.5729525133. The cubic root of 22283809 is about 281.4037037055.

The spelling of 22283809 in words is "twenty-two million, two hundred eighty-three thousand, eight hundred nine".