266040228 has 24 divisors (see below), whose sum is σ = 621351360. Its totient is φ = 88595680.

The previous prime is 266040227. The next prime is 266040253. The reversal of 266040228 is 822040662.

266040228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 266040195 and 266040204.

It is not an unprimeable number, because it can be changed into a prime (266040227) 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, 3313 + ... + 23303.

It is an arithmetic number, because the mean of its divisors is an integer number (25889640).

Almost surely, 2^266040228 is an apocalyptic number.

It is an amenable number.

266040228 is an abundant number, since it is smaller than the sum of its proper divisors (355311132).

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

266040228 is a wasteful number, since it uses less digits than its factorization.

266040228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21107 (or 21105 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 266040228 is about 16310.7396521433. The cubic root of 266040228 is about 643.1551779829.

The spelling of 266040228 in words is "two hundred sixty-six million, forty thousand, two hundred twenty-eight".