206728052 has 12 divisors (see below), whose sum is σ = 361875780. Its totient is φ = 103334976.

The previous prime is 206728033. The next prime is 206728061. The reversal of 206728052 is 250827602.

206728052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 170198116 + 36529936 = 13046^2 + 6044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20768 + ... + 29064.

It is an arithmetic number, because the mean of its divisors is an integer number (30156315).

Almost surely, 2^206728052 is an apocalyptic number.

It is an amenable number.

206728052 is a deficient number, since it is larger than the sum of its proper divisors (155147728).

206728052 is a wasteful number, since it uses less digits than its factorization.

206728052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14530 (or 14528 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 206728052 is about 14378.0406175529. The cubic root of 206728052 is about 591.2890059742.

The spelling of 206728052 in words is "two hundred six million, seven hundred twenty-eight thousand, fifty-two".