22444313 has 4 divisors (see below), whose sum is σ = 22524468. Its totient is φ = 22364160.

The previous prime is 22444309. The next prime is 22444319. The reversal of 22444313 is 31344422.

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 7912969 + 14531344 = 2813^2 + 3812^2 .

It is a cyclic number.

It is not a de Polignac number, because 22444313 - 2² = 22444309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22444319) 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, 39656 + ... + 40217.

It is an arithmetic number, because the mean of its divisors is an integer number (5631117).

Almost surely, 2^22444313 is an apocalyptic number.

It is an amenable number.

22444313 is a deficient number, since it is larger than the sum of its proper divisors (80155).

22444313 is an equidigital number, since it uses as much as digits as its factorization.

22444313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80154.

The product of its digits is 2304, while the sum is 23.

The square root of 22444313 is about 4737.5429285654. The cubic root of 22444313 is about 282.0777119294.

Adding to 22444313 its reverse (31344422), we get a palindrome (53788735).

The spelling of 22444313 in words is "twenty-two million, four hundred forty-four thousand, three hundred thirteen".