861740226 has 24 divisors (see below), whose sum is σ = 1867658364. Its totient is φ = 287161440.

The previous prime is 861740221. The next prime is 861740227. The reversal of 861740226 is 622047168.

861740226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 825125625 + 36614601 = 28725^2 + 6051^2 .

It is not an unprimeable number, because it can be changed into a prime (861740221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94216 + ... + 102956.

Almost surely, 2^861740226 is an apocalyptic number.

861740226 is an abundant number, since it is smaller than the sum of its proper divisors (1005918138).

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

861740226 is a wasteful number, since it uses less digits than its factorization.

861740226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226 (or 14223 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 861740226 is about 29355.4122096761. The cubic root of 861740226 is about 951.6095433188.

The spelling of 861740226 in words is "eight hundred sixty-one million, seven hundred forty thousand, two hundred twenty-six".