44409 has 8 divisors (see below), whose sum is σ = 60192. Its totient is φ = 29120.

The previous prime is 44389. The next prime is 44417. The reversal of 44409 is 90444.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44409 - 2⁷ = 44281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274 + ... + 404.

It is an arithmetic number, because the mean of its divisors is an integer number (7524).

2⁴⁴⁴⁰⁹ is an apocalyptic number.

44409 is the 113-rd nonagonal number.

It is an amenable number.

44409 is a deficient number, since it is larger than the sum of its proper divisors (15783).

44409 is a wasteful number, since it uses less digits than its factorization.

44409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 44409 is about 210.7344300298. The cubic root of 44409 is about 35.4125334661.

The spelling of 44409 in words is "forty-four thousand, four hundred nine".