268685906 has 8 divisors (see below), whose sum is σ = 403098444. Its totient is φ = 134319760.

The previous prime is 268685891. The next prime is 268685933. The reversal of 268685906 is 609586862.

It can be written as a sum of positive squares in 2 ways, for example, as 268664881 + 21025 = 16391^2 + 145^2 .

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

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, 16436 + ... + 28416.

Almost surely, 2^268685906 is an apocalyptic number.

268685906 is a deficient number, since it is larger than the sum of its proper divisors (134412538).

268685906 is a wasteful number, since it uses less digits than its factorization.

268685906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23196.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 268685906 is about 16391.6413455151. The cubic root of 268685906 is about 645.2801347099.

The spelling of 268685906 in words is "two hundred sixty-eight million, six hundred eighty-five thousand, nine hundred six".