440255 has 8 divisors (see below), whose sum is σ = 532224. Its totient is φ = 349600.

The previous prime is 440239. The next prime is 440261. The reversal of 440255 is 552044.

It is a happy number.

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

It is not a de Polignac number, because 440255 - 2⁴ = 440239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725 + ... + 1185.

It is an arithmetic number, because the mean of its divisors is an integer number (66528).

2⁴⁴⁰²⁵⁵ is an apocalyptic number.

440255 is a deficient number, since it is larger than the sum of its proper divisors (91969).

440255 is a wasteful number, since it uses less digits than its factorization.

440255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 440255 is about 663.5171437122. The cubic root of 440255 is about 76.0737396031.

Adding to 440255 its reverse (552044), we get a palindrome (992299).

The spelling of 440255 in words is "four hundred forty thousand, two hundred fifty-five".