204321969 has 12 divisors (see below), whose sum is σ = 296359492. Its totient is φ = 135648000.

The previous prime is 204321947. The next prime is 204321973. The reversal of 204321969 is 969123402.

204321969 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 2 ways, for example, as 164480625 + 39841344 = 12825^2 + 6312^2 .

It is not a de Polignac number, because 204321969 - 2¹² = 204317873 is a prime.

It is a super-2 number, since 2×204321969² = 83494934032073922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204321919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44932 + ... + 49269.

Almost surely, 2^204321969 is an apocalyptic number.

It is an amenable number.

204321969 is a deficient number, since it is larger than the sum of its proper divisors (92037523).

204321969 is a wasteful number, since it uses less digits than its factorization.

204321969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94448 (or 94445 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 204321969 is about 14294.1235827874. The cubic root of 204321969 is about 588.9860675841.

The spelling of 204321969 in words is "two hundred four million, three hundred twenty-one thousand, nine hundred sixty-nine".