242668 has 24 divisors (see below), whose sum is σ = 465920. Its totient is φ = 110160.

The previous prime is 242659. The next prime is 242677. The reversal of 242668 is 866242.

It is an interprime number because it is at equal distance from previous prime (242659) and next prime (242677).

It is an unprimeable number.

242668 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 7 ways as a sum of consecutive naturals, for example, 2305 + ... + 2407.

2²⁴²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

242668 is a deficient number, since it is larger than the sum of its proper divisors (223252).

242668 is a wasteful number, since it uses less digits than its factorization.

242668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 155 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 242668 is about 492.6134387123. The cubic root of 242668 is about 62.3740824868.

The spelling of 242668 in words is "two hundred forty-two thousand, six hundred sixty-eight".