268481688 has 16 divisors (see below), whose sum is σ = 671204280. Its totient is φ = 89493888.

The previous prime is 268481671. The next prime is 268481693. The reversal of 268481688 is 886184862.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 268481688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5593345 + ... + 5593392.

Almost surely, 2^268481688 is an apocalyptic number.

It is an amenable number.

268481688 is an abundant number, since it is smaller than the sum of its proper divisors (402722592).

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

268481688 is a wasteful number, since it uses less digits than its factorization.

268481688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186746 (or 11186742 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 51.

The square root of 268481688 is about 16385.4108279286. The cubic root of 268481688 is about 645.1166089273.

The spelling of 268481688 in words is "two hundred sixty-eight million, four hundred eighty-one thousand, six hundred eighty-eight".