204430126 has 4 divisors (see below), whose sum is σ = 306645192. Its totient is φ = 102215062.

The previous prime is 204430099. The next prime is 204430129. The reversal of 204430126 is 621034402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 204430097 and 204430106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204430129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51107530 + ... + 51107533.

It is an arithmetic number, because the mean of its divisors is an integer number (76661298).

Almost surely, 2^204430126 is an apocalyptic number.

204430126 is a deficient number, since it is larger than the sum of its proper divisors (102215066).

204430126 is a wasteful number, since it uses less digits than its factorization.

204430126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102215065.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 204430126 is about 14297.9063502318. The cubic root of 204430126 is about 589.0899750419.

Adding to 204430126 its reverse (621034402), we get a palindrome (825464528).

The spelling of 204430126 in words is "two hundred four million, four hundred thirty thousand, one hundred twenty-six".