4440289 has 4 divisors (see below), whose sum is σ = 5074624. Its totient is φ = 3805956.

The previous prime is 4440257. The next prime is 4440323. The reversal of 4440289 is 9820444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4440289 - 2⁵ = 4440257 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4440289.

It is not an unprimeable number, because it can be changed into a prime (4440209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317157 + ... + 317170.

It is an arithmetic number, because the mean of its divisors is an integer number (1268656).

Almost surely, 2^4440289 is an apocalyptic number.

It is an amenable number.

4440289 is a deficient number, since it is larger than the sum of its proper divisors (634335).

4440289 is an equidigital number, since it uses as much as digits as its factorization.

4440289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634334.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4440289 is about 2107.1993261199. The cubic root of 4440289 is about 164.3628812744.

The spelling of 4440289 in words is "four million, four hundred forty thousand, two hundred eighty-nine".