268988276 has 6 divisors (see below), whose sum is σ = 470729490. Its totient is φ = 134494136.

The previous prime is 268988273. The next prime is 268988299. The reversal of 268988276 is 672889862.

It can be written as a sum of positive squares in only one way, i.e., 266016100 + 2972176 = 16310^2 + 1724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268988273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33623531 + ... + 33623538.

It is an arithmetic number, because the mean of its divisors is an integer number (78454915).

Almost surely, 2^268988276 is an apocalyptic number.

It is an amenable number.

268988276 is a deficient number, since it is larger than the sum of its proper divisors (201741214).

268988276 is a wasteful number, since it uses less digits than its factorization.

268988276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67247073 (or 67247071 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 268988276 is about 16400.8620505143. The cubic root of 268988276 is about 645.5221027531.

The spelling of 268988276 in words is "two hundred sixty-eight million, nine hundred eighty-eight thousand, two hundred seventy-six".