206668748 has 36 divisors (see below), whose sum is σ = 427249368. Its totient is φ = 86711040.

The previous prime is 206668739. The next prime is 206668753. The reversal of 206668748 is 847866602.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6461 + ... + 21332.

It is an arithmetic number, because the mean of its divisors is an integer number (11868038).

Almost surely, 2^206668748 is an apocalyptic number.

It is an amenable number.

206668748 is an abundant number, since it is smaller than the sum of its proper divisors (220580620).

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

206668748 is a wasteful number, since it uses less digits than its factorization.

206668748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27834 (or 27819 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 206668748 is about 14375.9781580246. The cubic root of 206668748 is about 591.2324596137.

The spelling of 206668748 in words is "two hundred six million, six hundred sixty-eight thousand, seven hundred forty-eight".