266340433 has 4 divisors (see below), whose sum is σ = 266397040. Its totient is φ = 266283828.

The previous prime is 266340407. The next prime is 266340509. The reversal of 266340433 is 334043662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 266340433 - 2⁵ = 266340401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266340395 and 266340404.

It is not an unprimeable number, because it can be changed into a prime (266340733) 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 in 3 ways as a sum of consecutive naturals, for example, 20535 + ... + 30892.

It is an arithmetic number, because the mean of its divisors is an integer number (66599260).

Almost surely, 2^266340433 is an apocalyptic number.

It is an amenable number.

266340433 is a deficient number, since it is larger than the sum of its proper divisors (56607).

266340433 is an equidigital number, since it uses as much as digits as its factorization.

266340433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56606.

The product of its (nonzero) digits is 31104, while the sum is 31.

The square root of 266340433 is about 16319.9397364083. The cubic root of 266340433 is about 643.3970033422.

The spelling of 266340433 in words is "two hundred sixty-six million, three hundred forty thousand, four hundred thirty-three".