242500 has 30 divisors (see below), whose sum is σ = 535766. Its totient is φ = 96000.

The previous prime is 242491. The next prime is 242509. The reversal of 242500 is 5242.

It is a happy number.

242500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (242491) and next prime (242509).

It can be written as a sum of positive squares in 5 ways, for example, as 101124 + 141376 = 318^2 + 376^2 .

It is not an unprimeable number, because it can be changed into a prime (242509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2452 + ... + 2548.

2²⁴²⁵⁰⁰ is an apocalyptic number.

242500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267883).

242500 is an abundant number, since it is smaller than the sum of its proper divisors (293266).

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

242500 is an equidigital number, since it uses as much as digits as its factorization.

242500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 242500 is about 492.4428900898. The cubic root of 242500 is about 62.3596852240.

Adding to 242500 its reverse (5242), we get a palindrome (247742).

The spelling of 242500 in words is "two hundred forty-two thousand, five hundred".