268433609 has 2 divisors, whose sum is σ = 268433610. Its totient is φ = 268433608.

The previous prime is 268433597. The next prime is 268433639. The reversal of 268433609 is 906334862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189667984 + 78765625 = 13772^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 268433609 - 2⁸ = 268433353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268433639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134216804 + 134216805.

It is an arithmetic number, because the mean of its divisors is an integer number (134216805).

Almost surely, 2^268433609 is an apocalyptic number.

It is an amenable number.

268433609 is a deficient number, since it is larger than the sum of its proper divisors (1).

268433609 is an equidigital number, since it uses as much as digits as its factorization.

268433609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 268433609 is about 16383.9436339362. The cubic root of 268433609 is about 645.0780980289.

The spelling of 268433609 in words is "two hundred sixty-eight million, four hundred thirty-three thousand, six hundred nine".