242322217 has 4 divisors (see below), whose sum is σ = 243016900. Its totient is φ = 241627536.

The previous prime is 242322193. The next prime is 242322221. The reversal of 242322217 is 712223242.

242322217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206669376 + 35652841 = 14376^2 + 5971^2 .

It is a cyclic number.

It is not a de Polignac number, because 242322217 - 2¹⁵ = 242289449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242322191 and 242322200.

It is not an unprimeable number, because it can be changed into a prime (242322247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346818 + ... + 347515.

It is an arithmetic number, because the mean of its divisors is an integer number (60754225).

Almost surely, 2^242322217 is an apocalyptic number.

It is an amenable number.

242322217 is a deficient number, since it is larger than the sum of its proper divisors (694683).

242322217 is an equidigital number, since it uses as much as digits as its factorization.

242322217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694682.

The product of its digits is 2688, while the sum is 25.

The square root of 242322217 is about 15566.7021876825. The cubic root of 242322217 is about 623.4444233421. Note that the first 4 decimals are identical.

Adding to 242322217 its reverse (712223242), we get a palindrome (954545459).

The spelling of 242322217 in words is "two hundred forty-two million, three hundred twenty-two thousand, two hundred seventeen".