266994369 has 12 divisors (see below), whose sum is σ = 387024976. Its totient is φ = 177365592.

The previous prime is 266994359. The next prime is 266994389. The reversal of 266994369 is 963499662.

It is not a de Polignac number, because 266994369 - 2⁷ = 266994241 is a prime.

It is a super-2 number, since 2×266994369² = 142571986155416322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266994319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49867 + ... + 54960.

Almost surely, 2^266994369 is an apocalyptic number.

It is an amenable number.

266994369 is a deficient number, since it is larger than the sum of its proper divisors (120030607).

266994369 is a wasteful number, since it uses less digits than its factorization.

266994369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105116 (or 105113 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 266994369 is about 16339.9623316579. The cubic root of 266994369 is about 643.9231427447.

The spelling of 266994369 in words is "two hundred sixty-six million, nine hundred ninety-four thousand, three hundred sixty-nine".