268889764 has 24 divisors (see below), whose sum is σ = 552823488. Its totient is φ = 112820640.

The previous prime is 268889759. The next prime is 268889771. The reversal of 268889764 is 467988862.

It is a junction number, because it is equal to n+sod(n) for n = 268889699 and 268889708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234472 + ... + 235615.

It is an arithmetic number, because the mean of its divisors is an integer number (23034312).

Almost surely, 2^268889764 is an apocalyptic number.

It is an amenable number.

268889764 is an abundant number, since it is smaller than the sum of its proper divisors (283933724).

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

268889764 is a wasteful number, since it uses less digits than its factorization.

268889764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470115 (or 470113 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 58.

The square root of 268889764 is about 16397.8585187213. The cubic root of 268889764 is about 645.4432896055.

The spelling of 268889764 in words is "two hundred sixty-eight million, eight hundred eighty-nine thousand, seven hundred sixty-four".