266228884 has 6 divisors (see below), whose sum is σ = 465900554. Its totient is φ = 133114440.

The previous prime is 266228881. The next prime is 266228917. The reversal of 266228884 is 488822662.

It can be written as a sum of positive squares in only one way, i.e., 262116100 + 4112784 = 16190^2 + 2028^2 .

It is a super-3 number, since 3×266228884³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266228881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33278607 + ... + 33278614.

Almost surely, 2^266228884 is an apocalyptic number.

It is an amenable number.

266228884 is a deficient number, since it is larger than the sum of its proper divisors (199671670).

266228884 is a wasteful number, since it uses less digits than its factorization.

266228884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66557225 (or 66557223 counting only the distinct ones).

The product of its digits is 589824, while the sum is 46.

The square root of 266228884 is about 16316.5218107291. The cubic root of 266228884 is about 643.3071680470.

The spelling of 266228884 in words is "two hundred sixty-six million, two hundred twenty-eight thousand, eight hundred eighty-four".