242656 has 12 divisors (see below), whose sum is σ = 477792. Its totient is φ = 121312.

The previous prime is 242647. The next prime is 242659. The reversal of 242656 is 656242.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 242656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (39816).

2²⁴²⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

242656 is a deficient number, since it is larger than the sum of its proper divisors (235136).

242656 is an equidigital number, since it uses as much as digits as its factorization.

242656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7593 (or 7585 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 242656 is about 492.6012586261. The cubic root of 242656 is about 62.3730543313.

Adding to 242656 its reverse (656242), we get a palindrome (898898).

It can be divided in two parts, 242 and 656, that added together give a palindrome (898).

The spelling of 242656 in words is "two hundred forty-two thousand, six hundred fifty-six".