206344136 has 16 divisors (see below), whose sum is σ = 392196300. Its totient is φ = 101758464.

The previous prime is 206344093. The next prime is 206344157. The reversal of 206344136 is 631443602.

It can be written as a sum of positive squares in 2 ways, for example, as 196168036 + 10176100 = 14006^2 + 3190^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206344099 and 206344108.

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 3 ways as a sum of consecutive naturals, for example, 176081 + ... + 177248.

Almost surely, 2^206344136 is an apocalyptic number.

It is an amenable number.

206344136 is a deficient number, since it is larger than the sum of its proper divisors (185852164).

206344136 is a wasteful number, since it uses less digits than its factorization.

206344136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353408 (or 353404 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 206344136 is about 14364.6836373099. The cubic root of 206344136 is about 590.9227502785.

Adding to 206344136 its reverse (631443602), we get a palindrome (837787738).

The spelling of 206344136 in words is "two hundred six million, three hundred forty-four thousand, one hundred thirty-six".