206440244 has 12 divisors (see below), whose sum is σ = 380284800. Its totient is φ = 97787448.

The previous prime is 206440237. The next prime is 206440259. The reversal of 206440244 is 442044602.

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, 1358084 + ... + 1358235.

It is an arithmetic number, because the mean of its divisors is an integer number (31690400).

Almost surely, 2^206440244 is an apocalyptic number.

It is an amenable number.

206440244 is a deficient number, since it is larger than the sum of its proper divisors (173844556).

206440244 is a wasteful number, since it uses less digits than its factorization.

206440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716342 (or 2716340 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 206440244 is about 14368.0285356064. The cubic root of 206440244 is about 591.0144798679.

Adding to 206440244 its reverse (442044602), we get a palindrome (648484846).

The spelling of 206440244 in words is "two hundred six million, four hundred forty thousand, two hundred forty-four".