242724 has 24 divisors (see below), whose sum is σ = 574560. Its totient is φ = 79744.

The previous prime is 242713. The next prime is 242729. The reversal of 242724 is 427242.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 242724.

It is not an unprimeable number, because it can be changed into a prime (242729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2²⁴²⁷²⁴ is an apocalyptic number.

It is an amenable number.

242724 is an abundant number, since it is smaller than the sum of its proper divisors (331836).

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

242724 is a wasteful number, since it uses less digits than its factorization.

242724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 297 counting only the distinct ones).

The product of its digits is 896, while the sum is 21.

The square root of 242724 is about 492.6702751334. The cubic root of 242724 is about 62.3788800978.

Adding to 242724 its reverse (427242), we get a palindrome (669966).

The spelling of 242724 in words is "two hundred forty-two thousand, seven hundred twenty-four", and thus it is an iban number.