268886836 has 24 divisors (see below), whose sum is σ = 499343040. Its totient is φ = 126415872.

The previous prime is 268886831. The next prime is 268886837. The reversal of 268886836 is 638688862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268886831) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 19341 + ... + 30196.

It is an arithmetic number, because the mean of its divisors is an integer number (20805960).

Almost surely, 2^268886836 is an apocalyptic number.

It is an amenable number.

268886836 is a deficient number, since it is larger than the sum of its proper divisors (230456204).

268886836 is a wasteful number, since it uses less digits than its factorization.

268886836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49623 (or 49621 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The square root of 268886836 is about 16397.7692385275. The cubic root of 268886836 is about 645.4409468055.

The spelling of 268886836 in words is "two hundred sixty-eight million, eight hundred eighty-six thousand, eight hundred thirty-six".