204173426 has 4 divisors (see below), whose sum is σ = 306260142. Its totient is φ = 102086712.

The previous prime is 204173413. The next prime is 204173467. The reversal of 204173426 is 624371402.

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., 163200625 + 40972801 = 12775^2 + 6401^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51043355 + ... + 51043358.

Almost surely, 2^204173426 is an apocalyptic number.

204173426 is a deficient number, since it is larger than the sum of its proper divisors (102086716).

204173426 is a wasteful number, since it uses less digits than its factorization.

204173426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102086715.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 204173426 is about 14288.9266916728. The cubic root of 204173426 is about 588.8433011319.

The spelling of 204173426 in words is "two hundred four million, one hundred seventy-three thousand, four hundred twenty-six".