1322444009 has 4 divisors (see below), whose sum is σ = 1322519940. Its totient is φ = 1322368080.

The previous prime is 1322444003. The next prime is 1322444027. The reversal of 1322444009 is 9004442231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 225840784 + 1096603225 = 15028^2 + 33115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322444009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322444003) 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, 2627 + ... + 51495.

It is an arithmetic number, because the mean of its divisors is an integer number (330629985).

Almost surely, 2^1322444009 is an apocalyptic number.

It is an amenable number.

1322444009 is a deficient number, since it is larger than the sum of its proper divisors (75931).

1322444009 is an equidigital number, since it uses as much as digits as its factorization.

1322444009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75930.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1322444009 is about 36365.4232616644. The cubic root of 1322444009 is about 1097.6379090679.

The spelling of 1322444009 in words is "one billion, three hundred twenty-two million, four hundred forty-four thousand, nine".