204450969 has 16 divisors (see below), whose sum is σ = 283429440. Its totient is φ = 130986240.

The previous prime is 204450947. The next prime is 204451019. The reversal of 204450969 is 969054402.

It is not a de Polignac number, because 204450969 - 2⁸ = 204450713 is a prime.

It is a super-2 number, since 2×204450969² = 83600397450077922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204450769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4164 + ... + 20645.

It is an arithmetic number, because the mean of its divisors is an integer number (17714340).

Almost surely, 2^204450969 is an apocalyptic number.

It is an amenable number.

204450969 is a deficient number, since it is larger than the sum of its proper divisors (78978471).

204450969 is a wasteful number, since it uses less digits than its factorization.

204450969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 204450969 is about 14298.6352145930. The cubic root of 204450969 is about 589.1099948979.

The spelling of 204450969 in words is "two hundred four million, four hundred fifty thousand, nine hundred sixty-nine".