205690852 has 24 divisors (see below), whose sum is σ = 374303160. Its totient is φ = 98784000.

The previous prime is 205690831. The next prime is 205690867. The reversal of 205690852 is 258096502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56460196 + 149230656 = 7514^2 + 12216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18352 + ... + 27352.

It is an arithmetic number, because the mean of its divisors is an integer number (15595965).

Almost surely, 2^205690852 is an apocalyptic number.

It is an amenable number.

205690852 is a deficient number, since it is larger than the sum of its proper divisors (168612308).

205690852 is a wasteful number, since it uses less digits than its factorization.

205690852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231 (or 9229 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 205690852 is about 14341.9263699128. The cubic root of 205690852 is about 590.2984719832.

The spelling of 205690852 in words is "two hundred five million, six hundred ninety thousand, eight hundred fifty-two".