204939650 has 12 divisors (see below), whose sum is σ = 381187842. Its totient is φ = 81975840.

The previous prime is 204939649. The next prime is 204939659. The reversal of 204939650 is 56939402.

It can be written as a sum of positive squares in 3 ways, for example, as 160757041 + 44182609 = 12679^2 + 6647^2 .

It is not an unprimeable number, because it can be changed into a prime (204939659) 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, 2049347 + ... + 2049446.

Almost surely, 2^204939650 is an apocalyptic number.

204939650 is a deficient number, since it is larger than the sum of its proper divisors (176248192).

204939650 is a wasteful number, since it uses less digits than its factorization.

204939650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098805 (or 4098800 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 204939650 is about 14315.7133947282. The cubic root of 204939650 is about 589.5789872058.

The spelling of 204939650 in words is "two hundred four million, nine hundred thirty-nine thousand, six hundred fifty".