226218789 has 12 divisors (see below), whose sum is σ = 326959776. Its totient is φ = 150720552.

The previous prime is 226218781. The next prime is 226218799. The reversal of 226218789 is 987812622.

It is not a de Polignac number, because 226218789 - 2³ = 226218781 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226218781) by changing a digit.

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, 10072 + ... + 23534.

It is an arithmetic number, because the mean of its divisors is an integer number (27246648).

Almost surely, 2^226218789 is an apocalyptic number.

It is an amenable number.

226218789 is a deficient number, since it is larger than the sum of its proper divisors (100740987).

226218789 is a wasteful number, since it uses less digits than its factorization.

226218789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15336 (or 15333 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 226218789 is about 15040.5714319636. The cubic root of 226218789 is about 609.3164330617.

The spelling of 226218789 in words is "two hundred twenty-six million, two hundred eighteen thousand, seven hundred eighty-nine".