266938772 has 12 divisors (see below), whose sum is σ = 468491520. Its totient is φ = 133084056.

The previous prime is 266938753. The next prime is 266938783. The reversal of 266938772 is 277839662.

266938772 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 266938772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94772 + ... + 97547.

It is an arithmetic number, because the mean of its divisors is an integer number (39040960).

Almost surely, 2^266938772 is an apocalyptic number.

It is an amenable number.

266938772 is a deficient number, since it is larger than the sum of its proper divisors (201552748).

266938772 is a wasteful number, since it uses less digits than its factorization.

266938772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192670 (or 192668 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 266938772 is about 16338.2609845724. The cubic root of 266938772 is about 643.8784443236.

The spelling of 266938772 in words is "two hundred sixty-six million, nine hundred thirty-eight thousand, seven hundred seventy-two".