242444305 has 4 divisors (see below), whose sum is σ = 290933172. Its totient is φ = 193955440.

The previous prime is 242444299. The next prime is 242444309. The reversal of 242444305 is 503444242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159870736 + 82573569 = 12644^2 + 9087^2 .

It is not a de Polignac number, because 242444305 - 2³ = 242444297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242444309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24244426 + ... + 24244435.

It is an arithmetic number, because the mean of its divisors is an integer number (72733293).

Almost surely, 2^242444305 is an apocalyptic number.

It is an amenable number.

242444305 is a deficient number, since it is larger than the sum of its proper divisors (48488867).

242444305 is an equidigital number, since it uses as much as digits as its factorization.

242444305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48488866.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 242444305 is about 15570.6231410307. The cubic root of 242444305 is about 623.5491080665.

Adding to 242444305 its reverse (503444242), we get a palindrome (745888547).

The spelling of 242444305 in words is "two hundred forty-two million, four hundred forty-four thousand, three hundred five".