204042266 has 4 divisors (see below), whose sum is σ = 306063402. Its totient is φ = 102021132.

The previous prime is 204042263. The next prime is 204042271. The reversal of 204042266 is 662240402.

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

It can be written as a sum of positive squares in only one way, i.e., 106605625 + 97436641 = 10325^2 + 9871^2 .

It is not an unprimeable number, because it can be changed into a prime (204042263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010565 + ... + 51010568.

Almost surely, 2^204042266 is an apocalyptic number.

204042266 is a deficient number, since it is larger than the sum of its proper divisors (102021136).

204042266 is a wasteful number, since it uses less digits than its factorization.

204042266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102021135.

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

The square root of 204042266 is about 14284.3363864059. The cubic root of 204042266 is about 588.7171841134.

Adding to 204042266 its reverse (662240402), we get a palindrome (866282668).

The spelling of 204042266 in words is "two hundred four million, forty-two thousand, two hundred sixty-six".