206842648 has 8 divisors (see below), whose sum is σ = 387829980. Its totient is φ = 103421320.

The previous prime is 206842631. The next prime is 206842687. The reversal of 206842648 is 846248602.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 206842648.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 12927658 + ... + 12927673.

Almost surely, 2^206842648 is an apocalyptic number.

It is an amenable number.

206842648 is a deficient number, since it is larger than the sum of its proper divisors (180987332).

206842648 is a wasteful number, since it uses less digits than its factorization.

206842648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25855337 (or 25855333 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 206842648 is about 14382.0251703298. The cubic root of 206842648 is about 591.3982426223.

It can be divided in two parts, 20684 and 2648, that added together give a palindrome (23332).

The spelling of 206842648 in words is "two hundred six million, eight hundred forty-two thousand, six hundred forty-eight".