44909 has 2 divisors, whose sum is σ = 44910.
Its totient is φ = 44908.
The previous prime is 44893. The next prime is 44917. The reversal of 44909 is 90944.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 31684 + 13225 = 178^2 + 115^2
It is a cyclic number.
It is not a de Polignac number, because 44909 - 24 = 44893 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is an Ulam number.
It is a Curzon number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 44909.
It is not a weakly prime, because it can be changed into another prime (44939) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22454 + 22455.
It is an arithmetic number, because the mean of its divisors is an integer number (22455).
244909 is an apocalyptic number.
It is an amenable number.
44909 is a deficient number, since it is larger than the sum of its proper divisors (1).
44909 is an equidigital number, since it uses as much as digits as its factorization.
44909 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1296, while the sum is 26.
The square root of 44909 is about 211.9174367531.
The cubic root of 44909 is about 35.5449407694.
It can be divided in two parts, 4 and 4909, that added together give a cube (4913 = 173).
The spelling of 44909 in words is "forty-four thousand, nine hundred nine".