204916 has 6 divisors (see below), whose sum is σ = 358610. Its totient is φ = 102456.

The previous prime is 204913. The next prime is 204917. The reversal of 204916 is 619402.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 60516 = 380^2 + 246^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25611 + ... + 25618.

2²⁰⁴⁹¹⁶ is an apocalyptic number.

It is an amenable number.

204916 is a deficient number, since it is larger than the sum of its proper divisors (153694).

204916 is a wasteful number, since it uses less digits than its factorization.

204916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51233 (or 51231 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 204916 is about 452.6764849205. The cubic root of 204916 is about 58.9556307229.

The spelling of 204916 in words is "two hundred four thousand, nine hundred sixteen".