204769449 has 6 divisors (see below), whose sum is σ = 295778106. Its totient is φ = 136512960.

The previous prime is 204769427. The next prime is 204769451. The reversal of 204769449 is 944967402.

It can be written as a sum of positive squares in only one way, i.e., 140849424 + 63920025 = 11868^2 + 7995^2 .

It is not a de Polignac number, because 204769449 - 2⁵ = 204769417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204769469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11376072 + ... + 11376089.

It is an arithmetic number, because the mean of its divisors is an integer number (49296351).

Almost surely, 2^204769449 is an apocalyptic number.

It is an amenable number.

204769449 is a deficient number, since it is larger than the sum of its proper divisors (91008657).

204769449 is a wasteful number, since it uses less digits than its factorization.

204769449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22752167 (or 22752164 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 204769449 is about 14309.7676081759. The cubic root of 204769449 is about 589.4157282087.

The spelling of 204769449 in words is "two hundred four million, seven hundred sixty-nine thousand, four hundred forty-nine".