242988 has 12 divisors (see below), whose sum is σ = 567000. Its totient is φ = 80992.

The previous prime is 242971. The next prime is 242989. The reversal of 242988 is 889242.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242988.

It is not an unprimeable number, because it can be changed into a prime (242989) by changing a digit.

242988 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, 10113 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2²⁴²⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

242988 is an abundant number, since it is smaller than the sum of its proper divisors (324012).

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

242988 is a wasteful number, since it uses less digits than its factorization.

242988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20256 (or 20254 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 242988 is about 492.9381299920. The cubic root of 242988 is about 62.4014874728.

The spelling of 242988 in words is "two hundred forty-two thousand, nine hundred eighty-eight".