268881433 has 2 divisors, whose sum is σ = 268881434. Its totient is φ = 268881432.

The previous prime is 268881427. The next prime is 268881443. The reversal of 268881433 is 334188862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245956489 + 22924944 = 15683^2 + 4788^2 .

It is a cyclic number.

It is not a de Polignac number, because 268881433 - 2⁹ = 268880921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268881433.

It is not a weakly prime, because it can be changed into another prime (268881443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134440716 + 134440717.

It is an arithmetic number, because the mean of its divisors is an integer number (134440717).

Almost surely, 2^268881433 is an apocalyptic number.

It is an amenable number.

268881433 is a deficient number, since it is larger than the sum of its proper divisors (1).

268881433 is an equidigital number, since it uses as much as digits as its factorization.

268881433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The square root of 268881433 is about 16397.6044896808. The cubic root of 268881433 is about 645.4366236228.

The spelling of 268881433 in words is "two hundred sixty-eight million, eight hundred eighty-one thousand, four hundred thirty-three".