242550 has 108 divisors (see below), whose sum is σ = 826956. Its totient is φ = 50400.

The previous prime is 242533. The next prime is 242551. The reversal of 242550 is 55242.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 242550.

It is not an unprimeable number, because it can be changed into a prime (242551) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 22045 + ... + 22055.

It is an arithmetic number, because the mean of its divisors is an integer number (7657).

2²⁴²⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413478).

242550 is an abundant number, since it is smaller than the sum of its proper divisors (584406).

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

242550 is a wasteful number, since it uses less digits than its factorization.

242550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 242550 is about 492.4936547815. The cubic root of 242550 is about 62.3639708184.

Adding to 242550 its reverse (55242), we get a palindrome (297792).

The spelling of 242550 in words is "two hundred forty-two thousand, five hundred fifty".