204422429 has 2 divisors, whose sum is σ = 204422430. Its totient is φ = 204422428.

The previous prime is 204422423. The next prime is 204422437. The reversal of 204422429 is 924224402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201583204 + 2839225 = 14198^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 204422429 - 2⁸ = 204422173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204422423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102211214 + 102211215.

It is an arithmetic number, because the mean of its divisors is an integer number (102211215).

Almost surely, 2^204422429 is an apocalyptic number.

It is an amenable number.

204422429 is a deficient number, since it is larger than the sum of its proper divisors (1).

204422429 is an equidigital number, since it uses as much as digits as its factorization.

204422429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 204422429 is about 14297.6371824158. The cubic root of 204422429 is about 589.0825816723.

The spelling of 204422429 in words is "two hundred four million, four hundred twenty-two thousand, four hundred twenty-nine".