205594216 has 32 divisors (see below), whose sum is σ = 391184640. Its totient is φ = 101288448.

The previous prime is 205594189. The next prime is 205594219. The reversal of 205594216 is 612495502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (205594219) 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 7 ways as a sum of consecutive naturals, for example, 237801 + ... + 238663.

It is an arithmetic number, because the mean of its divisors is an integer number (12224520).

Almost surely, 2^205594216 is an apocalyptic number.

It is an amenable number.

205594216 is a deficient number, since it is larger than the sum of its proper divisors (185590424).

205594216 is a wasteful number, since it uses less digits than its factorization.

205594216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 205594216 is about 14338.5569706299. The cubic root of 205594216 is about 590.2060144298.

The spelling of 205594216 in words is "two hundred five million, five hundred ninety-four thousand, two hundred sixteen".