242256 has 60 divisors (see below), whose sum is σ = 735072. Its totient is φ = 68544.

The previous prime is 242243. The next prime is 242257. The reversal of 242256 is 652242.

242256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242257) by changing a digit.

242256 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 11 ways as a sum of consecutive naturals, for example, 2301 + ... + 2403.

2²⁴²²⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367536).

242256 is an abundant number, since it is smaller than the sum of its proper divisors (492816).

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

242256 is a wasteful number, since it uses less digits than its factorization.

242256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 115 counting only the distinct ones).

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

The square root of 242256 is about 492.1950832749. The cubic root of 242256 is about 62.3387630668.

Adding to 242256 its reverse (652242), we get a palindrome (894498).

The spelling of 242256 in words is "two hundred forty-two thousand, two hundred fifty-six".