266434813 has 8 divisors (see below), whose sum is σ = 274224960. Its totient is φ = 258756960.

The previous prime is 266434811. The next prime is 266434841. The reversal of 266434813 is 318434662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 266434813 - 2¹ = 266434811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266434811) 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 in 7 ways as a sum of consecutive naturals, for example, 23248 + ... + 32761.

It is an arithmetic number, because the mean of its divisors is an integer number (34278120).

Almost surely, 2^266434813 is an apocalyptic number.

It is an amenable number.

266434813 is a deficient number, since it is larger than the sum of its proper divisors (7790147).

266434813 is an equidigital number, since it uses as much as digits as its factorization.

266434813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56147.

The product of its digits is 82944, while the sum is 37.

The square root of 266434813 is about 16322.8310350870. The cubic root of 266434813 is about 643.4729921025.

The spelling of 266434813 in words is "two hundred sixty-six million, four hundred thirty-four thousand, eight hundred thirteen".