440256 has 28 divisors (see below), whose sum is σ = 1165352. Its totient is φ = 146688.

The previous prime is 440239. The next prime is 440261. The reversal of 440256 is 652044.

It is a happy number.

440256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

440256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955 + ... + 1338.

2⁴⁴⁰²⁵⁶ is an apocalyptic number.

It is an amenable number.

440256 is an abundant number, since it is smaller than the sum of its proper divisors (725096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440256 is a wasteful number, since it uses less digits than its factorization.

440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2298 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 440256 is about 663.5178972718. The cubic root of 440256 is about 76.0737972013.

It can be divided in two parts, 440 and 256, that added together give a palindrome (696).

The spelling of 440256 in words is "four hundred forty thousand, two hundred fifty-six".