268493888 has 28 divisors (see below), whose sum is σ = 573778380. Its totient is φ = 123919872.

The previous prime is 268493843. The next prime is 268493893. The reversal of 268493888 is 888394862.

It can be written as a sum of positive squares in 2 ways, for example, as 125260864 + 143233024 = 11192^2 + 11968^2 .

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, 160523 + ... + 162186.

It is an arithmetic number, because the mean of its divisors is an integer number (20492085).

Almost surely, 2^268493888 is an apocalyptic number.

It is an amenable number.

268493888 is an abundant number, since it is smaller than the sum of its proper divisors (305284492).

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

268493888 is a wasteful number, since it uses less digits than its factorization.

268493888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322734 (or 322724 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 56.

The square root of 268493888 is about 16385.7831060954. The cubic root of 268493888 is about 645.1263802994.

The spelling of 268493888 in words is "two hundred sixty-eight million, four hundred ninety-three thousand, eight hundred eighty-eight".