268583809 has 8 divisors (see below), whose sum is σ = 289521792. Its totient is φ = 247685520.

The previous prime is 268583801. The next prime is 268583827. The reversal of 268583809 is 908385862.

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

It is a cyclic number.

It is not a de Polignac number, because 268583809 - 2³ = 268583801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268583801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4974 + ... + 23704.

It is an arithmetic number, because the mean of its divisors is an integer number (36190224).

Almost surely, 2^268583809 is an apocalyptic number.

It is an amenable number.

268583809 is a deficient number, since it is larger than the sum of its proper divisors (20937983).

268583809 is a wasteful number, since it uses less digits than its factorization.

268583809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 268583809 is about 16388.5267489180. The cubic root of 268583809 is about 645.1983917889.

The spelling of 268583809 in words is "two hundred sixty-eight million, five hundred eighty-three thousand, eight hundred nine".