266228826 has 16 divisors (see below), whose sum is σ = 545444928. Its totient is φ = 86578400.

The previous prime is 266228803. The next prime is 266228843. The reversal of 266228826 is 628822662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540870 + ... + 541361.

It is an arithmetic number, because the mean of its divisors is an integer number (34090308).

Almost surely, 2^266228826 is an apocalyptic number.

266228826 is an abundant number, since it is smaller than the sum of its proper divisors (279216102).

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

266228826 is a wasteful number, since it uses less digits than its factorization.

266228826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082277.

The product of its digits is 221184, while the sum is 42.

The square root of 266228826 is about 16316.5200333895. The cubic root of 266228826 is about 643.3071213305.

The spelling of 266228826 in words is "two hundred sixty-six million, two hundred twenty-eight thousand, eight hundred twenty-six".