242216017 has 4 divisors (see below), whose sum is σ = 256464036. Its totient is φ = 227968000.

The previous prime is 242215993. The next prime is 242216027. The reversal of 242216017 is 710612242.

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 167029776 + 75186241 = 12924^2 + 8671^2 .

It is a cyclic number.

It is not a de Polignac number, because 242216017 - 2²³ = 233827409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242215982 and 242216000.

It is not an unprimeable number, because it can be changed into a prime (242216027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7123984 + ... + 7124017.

It is an arithmetic number, because the mean of its divisors is an integer number (64116009).

Almost surely, 2^242216017 is an apocalyptic number.

It is an amenable number.

242216017 is a deficient number, since it is larger than the sum of its proper divisors (14248019).

242216017 is a wasteful number, since it uses less digits than its factorization.

242216017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14248018.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 242216017 is about 15563.2906867410. The cubic root of 242216017 is about 623.3533332318.

Adding to 242216017 its reverse (710612242), we get a palindrome (952828259).

The spelling of 242216017 in words is "two hundred forty-two million, two hundred sixteen thousand, seventeen".