242530 has 16 divisors (see below), whose sum is σ = 443520. Its totient is φ = 95472.

The previous prime is 242521. The next prime is 242533. The reversal of 242530 is 35242.

242530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (242533) 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, 637 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2²⁴²⁵³⁰ is an apocalyptic number.

242530 is a deficient number, since it is larger than the sum of its proper divisors (200990).

242530 is a wasteful number, since it uses less digits than its factorization.

242530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 242530 is about 492.4733495327. The cubic root of 242530 is about 62.3622566513.

Adding to 242530 its reverse (35242), we get a palindrome (277772).

The spelling of 242530 in words is "two hundred forty-two thousand, five hundred thirty".