204354709 has 8 divisors (see below), whose sum is σ = 231657440. Its totient is φ = 178706736.

The previous prime is 204354587. The next prime is 204354713. The reversal of 204354709 is 907453402.

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

It is not a de Polignac number, because 204354709 - 2⁷ = 204354581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204354749) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 413427 + ... + 413920.

It is an arithmetic number, because the mean of its divisors is an integer number (28957180).

Almost surely, 2^204354709 is an apocalyptic number.

It is an amenable number.

204354709 is a deficient number, since it is larger than the sum of its proper divisors (27302731).

204354709 is a wasteful number, since it uses less digits than its factorization.

204354709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827379.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 204354709 is about 14295.2687627760. The cubic root of 204354709 is about 589.0175250824.

The spelling of 204354709 in words is "two hundred four million, three hundred fifty-four thousand, seven hundred nine".