268809388 has 6 divisors (see below), whose sum is σ = 470416436. Its totient is φ = 134404692.

The previous prime is 268809347. The next prime is 268809391. The reversal of 268809388 is 883908862.

It is a happy number.

268809388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 33601170 + ... + 33601177.

Almost surely, 2^268809388 is an apocalyptic number.

It is an amenable number.

268809388 is a deficient number, since it is larger than the sum of its proper divisors (201607048).

268809388 is a wasteful number, since it uses less digits than its factorization.

268809388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67202351 (or 67202349 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The square root of 268809388 is about 16395.4075277195. The cubic root of 268809388 is about 645.3789716498.

The spelling of 268809388 in words is "two hundred sixty-eight million, eight hundred nine thousand, three hundred eighty-eight".