266870844 has 18 divisors (see below), whose sum is σ = 674590280. Its totient is φ = 88956936.

The previous prime is 266870831. The next prime is 266870867. The reversal of 266870844 is 448078662.

266870844 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 266870844.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3706504 + ... + 3706575.

Almost surely, 2^266870844 is an apocalyptic number.

It is an amenable number.

266870844 is an abundant number, since it is smaller than the sum of its proper divisors (407719436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266870844 is a wasteful number, since it uses less digits than its factorization.

266870844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413089 (or 7413084 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 266870844 is about 16336.1820508955. The cubic root of 266870844 is about 643.8238237014.

The spelling of 266870844 in words is "two hundred sixty-six million, eight hundred seventy thousand, eight hundred forty-four".