266794441 has 2 divisors, whose sum is σ = 266794442. Its totient is φ = 266794440.

The previous prime is 266794439. The next prime is 266794459. The reversal of 266794441 is 144497662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228614400 + 38180041 = 15120^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 266794441 - 2¹ = 266794439 is a prime.

Together with 266794439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (266794741) 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 as a sum of consecutive naturals, namely, 133397220 + 133397221.

It is an arithmetic number, because the mean of its divisors is an integer number (133397221).

Almost surely, 2^266794441 is an apocalyptic number.

It is an amenable number.

266794441 is a deficient number, since it is larger than the sum of its proper divisors (1).

266794441 is an equidigital number, since it uses as much as digits as its factorization.

266794441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 266794441 is about 16333.8434240077. The cubic root of 266794441 is about 643.7623772905.

The spelling of 266794441 in words is "two hundred sixty-six million, seven hundred ninety-four thousand, four hundred forty-one".