268518288 has 20 divisors (see below), whose sum is σ = 693672368. Its totient is φ = 89506080.

The previous prime is 268518269. The next prime is 268518293. The reversal of 268518288 is 882815862.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5594131 = 268518288 / (2 + 6 + 8 + 5 + 1 + 8 + 2 + 8 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2797018 + ... + 2797113.

Almost surely, 2^268518288 is an apocalyptic number.

It is an amenable number.

268518288 is an abundant number, since it is smaller than the sum of its proper divisors (425154080).

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

268518288 is a wasteful number, since it uses less digits than its factorization.

268518288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594142 (or 5594136 counting only the distinct ones).

The product of its digits is 491520, while the sum is 48.

The square root of 268518288 is about 16386.5276370560. The cubic root of 268518288 is about 645.1459221556.

The spelling of 268518288 in words is "two hundred sixty-eight million, five hundred eighteen thousand, two hundred eighty-eight".