204422417 has 2 divisors, whose sum is σ = 204422418. Its totient is φ = 204422416.

The previous prime is 204422389. The next prime is 204422423. The reversal of 204422417 is 714224402.

204422417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171060241 + 33362176 = 13079^2 + 5776^2 .

It is a cyclic number.

It is not a de Polignac number, because 204422417 - 2¹⁸ = 204160273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204422437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102211208 + 102211209.

It is an arithmetic number, because the mean of its divisors is an integer number (102211209).

Almost surely, 2^204422417 is an apocalyptic number.

It is an amenable number.

204422417 is a deficient number, since it is larger than the sum of its proper divisors (1).

204422417 is an equidigital number, since it uses as much as digits as its factorization.

204422417 is an evil number, because the sum of its binary digits is even.

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

The square root of 204422417 is about 14297.6367627661. The cubic root of 204422417 is about 589.0825701455.

Adding to 204422417 its reverse (714224402), we get a palindrome (918646819).

The spelling of 204422417 in words is "two hundred four million, four hundred twenty-two thousand, four hundred seventeen".