206771242 has 16 divisors (see below), whose sum is σ = 326514240. Its totient is φ = 98012992.

The previous prime is 206771197. The next prime is 206771251. The reversal of 206771242 is 242177602.

It is an unprimeable number.

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, 14692 + ... + 25087.

It is an arithmetic number, because the mean of its divisors is an integer number (20407140).

Almost surely, 2^206771242 is an apocalyptic number.

206771242 is a deficient number, since it is larger than the sum of its proper divisors (119742998).

206771242 is a wasteful number, since it uses less digits than its factorization.

206771242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39917.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 206771242 is about 14379.5424822906. The cubic root of 206771242 is about 591.3301808311.

The spelling of 206771242 in words is "two hundred six million, seven hundred seventy-one thousand, two hundred forty-two".