268311868 has 12 divisors (see below), whose sum is σ = 512231832. Its totient is φ = 121959920.

The previous prime is 268311847. The next prime is 268311877. The reversal of 268311868 is 868113862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048955 + ... + 3049042.

It is an arithmetic number, because the mean of its divisors is an integer number (42685986).

Almost surely, 2^268311868 is an apocalyptic number.

It is an amenable number.

268311868 is a deficient number, since it is larger than the sum of its proper divisors (243919964).

268311868 is a wasteful number, since it uses less digits than its factorization.

268311868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6098012 (or 6098010 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 268311868 is about 16380.2279593417. The cubic root of 268311868 is about 644.9805638836.

The spelling of 268311868 in words is "two hundred sixty-eight million, three hundred eleven thousand, eight hundred sixty-eight".