44011309 has 2 divisors, whose sum is σ = 44011310. Its totient is φ = 44011308.

The previous prime is 44011307. The next prime is 44011313. The reversal of 44011309 is 90311044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42902500 + 1108809 = 6550^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 44011309 - 2¹ = 44011307 is a prime.

Together with 44011307, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 44011309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44011307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22005654 + 22005655.

It is an arithmetic number, because the mean of its divisors is an integer number (22005655).

Almost surely, 2^44011309 is an apocalyptic number.

It is an amenable number.

44011309 is a deficient number, since it is larger than the sum of its proper divisors (1).

44011309 is an equidigital number, since it uses as much as digits as its factorization.

44011309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 44011309 is about 6634.1019738922. The cubic root of 44011309 is about 353.0650769336.

The spelling of 44011309 in words is "forty-four million, eleven thousand, three hundred nine".