242244 has 24 divisors (see below), whose sum is σ = 628320. Its totient is φ = 80712.

The previous prime is 242243. The next prime is 242257. The reversal of 242244 is 442242.

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

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (242243) 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, 1014 + ... + 1229.

It is an arithmetic number, because the mean of its divisors is an integer number (26180).

2²⁴²²⁴⁴ is an apocalyptic number.

It is an amenable number.

242244 is an abundant number, since it is smaller than the sum of its proper divisors (386076).

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

242244 is a wasteful number, since it uses less digits than its factorization.

242244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256 (or 2248 counting only the distinct ones).

The product of its digits is 512, while the sum is 18.

The square root of 242244 is about 492.1828928356. The cubic root of 242244 is about 62.3377337459.

Adding to 242244 its reverse (442242), we get a palindrome (684486).

The spelling of 242244 in words is "two hundred forty-two thousand, two hundred forty-four", and thus it is an iban number.