266443243 has 8 divisors (see below), whose sum is σ = 296150256. Its totient is φ = 237650400.

The previous prime is 266443241. The next prime is 266443249. The reversal of 266443243 is 342344662.

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 266443243 - 2¹ = 266443241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266443199 and 266443208.

It is not an unprimeable number, because it can be changed into a prime (266443241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227928 + ... + 229093.

It is an arithmetic number, because the mean of its divisors is an integer number (37018782).

Almost surely, 2^266443243 is an apocalyptic number.

266443243 is a deficient number, since it is larger than the sum of its proper divisors (29707013).

266443243 is a wasteful number, since it uses less digits than its factorization.

266443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457085.

The product of its digits is 82944, while the sum is 34.

The square root of 266443243 is about 16323.0892603085. The cubic root of 266443243 is about 643.4797785281.

The spelling of 266443243 in words is "two hundred sixty-six million, four hundred forty-three thousand, two hundred forty-three".