206968128 has 56 divisors (see below), whose sum is σ = 566501280. Its totient is φ = 66608640.

The previous prime is 206968117. The next prime is 206968129. The reversal of 206968128 is 821869602.

It is a self number, because there is not a number n which added to its sum of digits gives 206968128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206968129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13018 + ... + 24153.

Almost surely, 2^206968128 is an apocalyptic number.

It is an amenable number.

206968128 is an abundant number, since it is smaller than the sum of its proper divisors (359533152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206968128 is a wasteful number, since it uses less digits than its factorization.

206968128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37215 (or 37205 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 206968128 is about 14386.3868987317. The cubic root of 206968128 is about 591.5178079878.

The spelling of 206968128 in words is "two hundred six million, nine hundred sixty-eight thousand, one hundred twenty-eight".