226440909 has 12 divisors (see below), whose sum is σ = 335059452. Its totient is φ = 147278400.

The previous prime is 226440887. The next prime is 226440913. The reversal of 226440909 is 909044622.

226440909 is a `hidden beast` number, since 2 + 2 + 644 + 0 + 9 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 44595684 + 181845225 = 6678^2 + 13485^2 .

It is not a de Polignac number, because 226440909 - 2⁹ = 226440397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226440209) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 306462 + ... + 307199.

It is an arithmetic number, because the mean of its divisors is an integer number (27921621).

Almost surely, 2^226440909 is an apocalyptic number.

It is an amenable number.

226440909 is a deficient number, since it is larger than the sum of its proper divisors (108618543).

226440909 is a wasteful number, since it uses less digits than its factorization.

226440909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613708 (or 613705 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 226440909 is about 15047.9536482540. The cubic root of 226440909 is about 609.5157932982.

The spelling of 226440909 in words is "two hundred twenty-six million, four hundred forty thousand, nine hundred nine".