811440226 has 16 divisors (see below), whose sum is σ = 1290784896. Its totient is φ = 381253696.

The previous prime is 811440197. The next prime is 811440233. The reversal of 811440226 is 622044118.

It is a junction number, because it is equal to n+sod(n) for n = 811440194 and 811440203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3555 + ... + 40441.

It is an arithmetic number, because the mean of its divisors is an integer number (80674056).

Almost surely, 2^811440226 is an apocalyptic number.

811440226 is a deficient number, since it is larger than the sum of its proper divisors (479344670).

811440226 is a wasteful number, since it uses less digits than its factorization.

811440226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37553.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 811440226 is about 28485.7898960166. The cubic root of 811440226 is about 932.7219082457.

The spelling of 811440226 in words is "eight hundred eleven million, four hundred forty thousand, two hundred twenty-six".