268490806 has 4 divisors (see below), whose sum is σ = 402736212. Its totient is φ = 134245402.

The previous prime is 268490797. The next prime is 268490813. The reversal of 268490806 is 608094862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67122700 + ... + 67122703.

It is an arithmetic number, because the mean of its divisors is an integer number (100684053).

Almost surely, 2^268490806 is an apocalyptic number.

268490806 is a deficient number, since it is larger than the sum of its proper divisors (134245406).

268490806 is a wasteful number, since it uses less digits than its factorization.

268490806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134245405.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 268490806 is about 16385.6890608848. The cubic root of 268490806 is about 645.1239118545.

The spelling of 268490806 in words is "two hundred sixty-eight million, four hundred ninety thousand, eight hundred six".