220256 has 12 divisors (see below), whose sum is σ = 433692. Its totient is φ = 110112.

The previous prime is 220243. The next prime is 220279. The reversal of 220256 is 652022.

220256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410 + ... + 3473.

It is an arithmetic number, because the mean of its divisors is an integer number (36141).

2²²⁰²⁵⁶ is an apocalyptic number.

It is an amenable number.

220256 is a deficient number, since it is larger than the sum of its proper divisors (213436).

220256 is an equidigital number, since it uses as much as digits as its factorization.

220256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893 (or 6885 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 220256 is about 469.3143935572. The cubic root of 220256 is about 60.3915137998.

Adding to 220256 its reverse (652022), we get a palindrome (872278).

The spelling of 220256 in words is "two hundred twenty thousand, two hundred fifty-six".