242526 has 16 divisors (see below), whose sum is σ = 491904. Its totient is φ = 79704.

The previous prime is 242521. The next prime is 242533. The reversal of 242526 is 625242.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242521) by changing a digit.

242526 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, 255 + ... + 741.

It is an arithmetic number, because the mean of its divisors is an integer number (30744).

2²⁴²⁵²⁶ is an apocalyptic number.

242526 is an abundant number, since it is smaller than the sum of its proper divisors (249378).

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

242526 is a wasteful number, since it uses less digits than its factorization.

242526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 960, while the sum is 21.

The square root of 242526 is about 492.4692883825. The cubic root of 242526 is about 62.3619138066.

Adding to 242526 its reverse (625242), we get a palindrome (867768).

The spelling of 242526 in words is "two hundred forty-two thousand, five hundred twenty-six".