268663844 has 12 divisors (see below), whose sum is σ = 480165504. Its totient is φ = 131473704.

The previous prime is 268663841. The next prime is 268663849. The reversal of 268663844 is 448366862.

It is a super-2 number, since 2×268663844² = 144360522145712672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (268663841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714344 + ... + 714719.

It is an arithmetic number, because the mean of its divisors is an integer number (40013792).

Almost surely, 2^268663844 is an apocalyptic number.

It is an amenable number.

268663844 is a deficient number, since it is larger than the sum of its proper divisors (211501660).

268663844 is a wasteful number, since it uses less digits than its factorization.

268663844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429114 (or 1429112 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 268663844 is about 16390.9683667561. The cubic root of 268663844 is about 645.2624727488.

The spelling of 268663844 in words is "two hundred sixty-eight million, six hundred sixty-three thousand, eight hundred forty-four".