266594949 has 32 divisors (see below), whose sum is σ = 404378880. Its totient is φ = 173534400.

The previous prime is 266594869. The next prime is 266594957. The reversal of 266594949 is 949495662.

It is a happy number.

266594949 is a `hidden beast` number, since 2 + 6 + 6 + 594 + 9 + 49 = 666.

It is not a de Polignac number, because 266594949 - 2⁷ = 266594821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266594895 and 266594904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266594749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258064 + ... + 259094.

It is an arithmetic number, because the mean of its divisors is an integer number (12636840).

Almost surely, 2^266594949 is an apocalyptic number.

It is an amenable number.

266594949 is a deficient number, since it is larger than the sum of its proper divisors (137783931).

266594949 is a wasteful number, since it uses less digits than its factorization.

266594949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1252 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 266594949 is about 16327.7355747819. The cubic root of 266594949 is about 643.6018823586.

The spelling of 266594949 in words is "two hundred sixty-six million, five hundred ninety-four thousand, nine hundred forty-nine".