204354445 has 8 divisors (see below), whose sum is σ = 253681560. Its totient is φ = 157846080.

The previous prime is 204354439. The next prime is 204354457. The reversal of 204354445 is 544453402.

204354445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25918281 + 178436164 = 5091^2 + 13358^2 .

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

It is not a de Polignac number, because 204354445 - 2⁷ = 204354317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704526 + ... + 704815.

It is an arithmetic number, because the mean of its divisors is an integer number (31710195).

Almost surely, 2^204354445 is an apocalyptic number.

It is an amenable number.

204354445 is a deficient number, since it is larger than the sum of its proper divisors (49327115).

204354445 is a wasteful number, since it uses less digits than its factorization.

204354445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409375.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 204354445 is about 14295.2595289487. The cubic root of 204354445 is about 589.0172714373.

The spelling of 204354445 in words is "two hundred four million, three hundred fifty-four thousand, four hundred forty-five".