268915538 has 8 divisors (see below), whose sum is σ = 404646732. Its totient is φ = 134033296.

The previous prime is 268915499. The next prime is 268915573. The reversal of 268915538 is 835519862.

It can be written as a sum of positive squares in 2 ways, for example, as 265592209 + 3323329 = 16297^2 + 1823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 268915492 and 268915501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211445 + ... + 212712.

Almost surely, 2^268915538 is an apocalyptic number.

268915538 is a deficient number, since it is larger than the sum of its proper divisors (135731194).

268915538 is a wasteful number, since it uses less digits than its factorization.

268915538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424476.

The product of its digits is 518400, while the sum is 47.

The square root of 268915538 is about 16398.6443951932. The cubic root of 268915538 is about 645.4639115928.

The spelling of 268915538 in words is "two hundred sixty-eight million, nine hundred fifteen thousand, five hundred thirty-eight".