8540540226 has 24 divisors (see below), whose sum is σ = 18668264940. Its totient is φ = 2821652736.

The previous prime is 8540540213. The next prime is 8540540233. The reversal of 8540540226 is 6220450458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7925450625 + 615089601 = 89025^2 + 24801^2 .

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 2097411 + ... + 2101478.

Almost surely, 2^8540540226 is an apocalyptic number.

8540540226 is an abundant number, since it is smaller than the sum of its proper divisors (10127724714).

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

8540540226 is a wasteful number, since it uses less digits than its factorization.

8540540226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199010 (or 4199007 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 8540540226 is about 92415.0432884171. The cubic root of 8540540226 is about 2044.0669401129.

The spelling of 8540540226 in words is "eight billion, five hundred forty million, five hundred forty thousand, two hundred twenty-six".