204385169 has 8 divisors (see below), whose sum is σ = 216613728. Its totient is φ = 192179520.

The previous prime is 204385163. The next prime is 204385171. The reversal of 204385169 is 961583402.

It is a happy number.

204385169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 204385169 - 2²⁰ = 203336593 is a prime.

It is a super-2 number, since 2×204385169² = 83546594614317122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204385163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14774 + ... + 25040.

It is an arithmetic number, because the mean of its divisors is an integer number (27076716).

Almost surely, 2^204385169 is an apocalyptic number.

It is an amenable number.

204385169 is a deficient number, since it is larger than the sum of its proper divisors (12228559).

204385169 is a wasteful number, since it uses less digits than its factorization.

204385169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11455.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 204385169 is about 14296.3341105334. The cubic root of 204385169 is about 589.0467888766.

The spelling of 204385169 in words is "two hundred four million, three hundred eighty-five thousand, one hundred sixty-nine".