44809 has 2 divisors, whose sum is σ = 44810. Its totient is φ = 44808.

The previous prime is 44797. The next prime is 44819. The reversal of 44809 is 90844.

44809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41209 + 3600 = 203^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 44809 - 2⁵ = 44777 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (44819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22404 + 22405.

It is an arithmetic number, because the mean of its divisors is an integer number (22405).

2⁴⁴⁸⁰⁹ is an apocalyptic number.

It is an amenable number.

44809 is a deficient number, since it is larger than the sum of its proper divisors (1).

44809 is an equidigital number, since it uses as much as digits as its factorization.

44809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 44809 is about 211.6813643191. The cubic root of 44809 is about 35.5185382248.

It can be divided in two parts, 4480 and 9, that added together give a square (4489 = 67²).

The spelling of 44809 in words is "forty-four thousand, eight hundred nine".