440085 has 8 divisors (see below), whose sum is σ = 704160. Its totient is φ = 234704.

The previous prime is 440047. The next prime is 440087. The reversal of 440085 is 580044.

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 440085 - 2⁹ = 439573 is a prime.

440085 is a lucky 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 440085.

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, 14655 + ... + 14684.

It is an arithmetic number, because the mean of its divisors is an integer number (88020).

2⁴⁴⁰⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

440085 is a deficient number, since it is larger than the sum of its proper divisors (264075).

440085 is a wasteful number, since it uses less digits than its factorization.

440085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29347.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 440085 is about 663.3890261378. The cubic root of 440085 is about 76.0639466417.

The spelling of 440085 in words is "four hundred forty thousand, eighty-five".