22246909 has 4 divisors (see below), whose sum is σ = 22666716. Its totient is φ = 21827104.

The previous prime is 22246901. The next prime is 22246919. The reversal of 22246909 is 90964222.

It is a happy number.

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 7784100 + 14462809 = 2790^2 + 3803^2 .

It is a cyclic number.

It is not a de Polignac number, because 22246909 - 2³ = 22246901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22246901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209824 + ... + 209929.

It is an arithmetic number, because the mean of its divisors is an integer number (5666679).

Almost surely, 2^22246909 is an apocalyptic number.

It is an amenable number.

22246909 is a deficient number, since it is larger than the sum of its proper divisors (419807).

22246909 is an equidigital number, since it uses as much as digits as its factorization.

22246909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419806.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 22246909 is about 4716.6629093036. The cubic root of 22246909 is about 281.2482914135.

The spelling of 22246909 in words is "twenty-two million, two hundred forty-six thousand, nine hundred nine".