266309226 has 48 divisors (see below), whose sum is σ = 604483776. Its totient is φ = 84572928.

The previous prime is 266309171. The next prime is 266309257. The reversal of 266309226 is 622903662.

It is a super-3 number, since 3×266309226³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116026 + ... + 118298.

It is an arithmetic number, because the mean of its divisors is an integer number (12593412).

Almost surely, 2^266309226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266309226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302241888).

266309226 is an abundant number, since it is smaller than the sum of its proper divisors (338174550).

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

266309226 is a wasteful number, since it uses less digits than its factorization.

266309226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 266309226 is about 16318.9836080560. The cubic root of 266309226 is about 643.3718735058.

The spelling of 266309226 in words is "two hundred sixty-six million, three hundred nine thousand, two hundred twenty-six".