268266309 has 8 divisors (see below), whose sum is σ = 357778272. Its totient is φ = 178799280.

The previous prime is 268266289. The next prime is 268266311. The reversal of 268266309 is 903662862.

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

It is not a de Polignac number, because 268266309 - 2⁵ = 268266277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268266389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6867 + ... + 24159.

It is an arithmetic number, because the mean of its divisors is an integer number (44722284).

Almost surely, 2^268266309 is an apocalyptic number.

It is an amenable number.

268266309 is a deficient number, since it is larger than the sum of its proper divisors (89511963).

268266309 is a wasteful number, since it uses less digits than its factorization.

268266309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22467.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 268266309 is about 16378.8372297914. The cubic root of 268266309 is about 644.9440562019.

The spelling of 268266309 in words is "two hundred sixty-eight million, two hundred sixty-six thousand, three hundred nine".