226340239 has 2 divisors, whose sum is σ = 226340240. Its totient is φ = 226340238.

The previous prime is 226340237. The next prime is 226340249. The reversal of 226340239 is 932043622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226340239 - 2¹ = 226340237 is a prime.

Together with 226340237, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 226340239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226340237) 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 as a sum of consecutive naturals, namely, 113170119 + 113170120.

It is an arithmetic number, because the mean of its divisors is an integer number (113170120).

Almost surely, 2^226340239 is an apocalyptic number.

226340239 is a deficient number, since it is larger than the sum of its proper divisors (1).

226340239 is an equidigital number, since it uses as much as digits as its factorization.

226340239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 226340239 is about 15044.6083033092. The cubic root of 226340239 is about 609.4254547187.

The spelling of 226340239 in words is "two hundred twenty-six million, three hundred forty thousand, two hundred thirty-nine".