242404217 has 8 divisors (see below), whose sum is σ = 267009600. Its totient is φ = 218226960.

The previous prime is 242404193. The next prime is 242404237. The reversal of 242404217 is 712404242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242404217 - 2⁸ = 242403961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242404237) 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 7 ways as a sum of consecutive naturals, for example, 105842 + ... + 108107.

It is an arithmetic number, because the mean of its divisors is an integer number (33376200).

Almost surely, 2^242404217 is an apocalyptic number.

It is an amenable number.

242404217 is a deficient number, since it is larger than the sum of its proper divisors (24605383).

242404217 is a wasteful number, since it uses less digits than its factorization.

242404217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214063.

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 242404217 is about 15569.3357918699. The cubic root of 242404217 is about 623.5147383659.

Adding to 242404217 its reverse (712404242), we get a palindrome (954808459).

The spelling of 242404217 in words is "two hundred forty-two million, four hundred four thousand, two hundred seventeen".