204206426 has 8 divisors (see below), whose sum is σ = 306601524. Its totient is φ = 102005920.

The previous prime is 204206423. The next prime is 204206447. The reversal of 204206426 is 624602402.

It can be written as a sum of positive squares in 2 ways, for example, as 179694025 + 24512401 = 13405^2 + 4951^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 204206395 and 204206404.

It is not an unprimeable number, because it can be changed into a prime (204206423) 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, 45995 + ... + 50238.

Almost surely, 2^204206426 is an apocalyptic number.

204206426 is a deficient number, since it is larger than the sum of its proper divisors (102395098).

204206426 is a wasteful number, since it uses less digits than its factorization.

204206426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97296.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204206426 is about 14290.0813853526. The cubic root of 204206426 is about 588.8750238076.

Adding to 204206426 its reverse (624602402), we get a palindrome (828808828).

The spelling of 204206426 in words is "two hundred four million, two hundred six thousand, four hundred twenty-six".