242242305 has 16 divisors (see below), whose sum is σ = 407987520. Its totient is φ = 122395968.

The previous prime is 242242303. The next prime is 242242313. The reversal of 242242305 is 503242242.

It is a happy number.

It is not a de Polignac number, because 242242305 - 2¹ = 242242303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242242303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424702 + ... + 425271.

It is an arithmetic number, because the mean of its divisors is an integer number (25499220).

Almost surely, 2^242242305 is an apocalyptic number.

It is an amenable number.

242242305 is a deficient number, since it is larger than the sum of its proper divisors (165745215).

242242305 is a wasteful number, since it uses less digits than its factorization.

242242305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850000.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 242242305 is about 15564.1352152955. The cubic root of 242242305 is about 623.3758835154.

Adding to 242242305 its reverse (503242242), we get a palindrome (745484547).

The spelling of 242242305 in words is "two hundred forty-two million, two hundred forty-two thousand, three hundred five".