440086 has 8 divisors (see below), whose sum is σ = 663264. Its totient is φ = 219000.

The previous prime is 440047. The next prime is 440087. The reversal of 440086 is 680044.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440087) by changing a digit.

440086 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 211 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (82908).

2⁴⁴⁰⁰⁸⁶ is an apocalyptic number.

440086 is a deficient number, since it is larger than the sum of its proper divisors (223178).

440086 is a wasteful number, since it uses less digits than its factorization.

440086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 440086 is about 663.3897798429. The cubic root of 440086 is about 76.0640042547.

The spelling of 440086 in words is "four hundred forty thousand, eighty-six".