268444243 has 2 divisors, whose sum is σ = 268444244. Its totient is φ = 268444242.

The previous prime is 268444223. The next prime is 268444303. The reversal of 268444243 is 342444862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268444243 - 2⁹ = 268443731 is a prime.

It is not a weakly prime, because it can be changed into another prime (268444223) 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 as a sum of consecutive naturals, namely, 134222121 + 134222122.

It is an arithmetic number, because the mean of its divisors is an integer number (134222122).

Almost surely, 2^268444243 is an apocalyptic number.

268444243 is a deficient number, since it is larger than the sum of its proper divisors (1).

268444243 is an equidigital number, since it uses as much as digits as its factorization.

268444243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 37.

The square root of 268444243 is about 16384.2681557645. The cubic root of 268444243 is about 645.0866161747.

The spelling of 268444243 in words is "two hundred sixty-eight million, four hundred forty-four thousand, two hundred forty-three".