440089 has 8 divisors (see below), whose sum is σ = 480200. Its totient is φ = 400896.

The previous prime is 440087. The next prime is 440093. The reversal of 440089 is 980044.

It can be written as a sum of positive squares in 4 ways, for example, as 36864 + 403225 = 192^2 + 635^2 .

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 440089 - 2¹ = 440087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440087) 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 in 7 ways as a sum of consecutive naturals, for example, 1087 + ... + 1435.

It is an arithmetic number, because the mean of its divisors is an integer number (60025).

2⁴⁴⁰⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

440089 is a deficient number, since it is larger than the sum of its proper divisors (40111).

440089 is a wasteful number, since it uses less digits than its factorization.

440089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

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

The square root of 440089 is about 663.3920409532. The cubic root of 440089 is about 76.0641770933.

It can be divided in two parts, 4400 and 89, that added together give a square (4489 = 67²).

The spelling of 440089 in words is "four hundred forty thousand, eighty-nine".