226666439 has 2 divisors, whose sum is σ = 226666440. Its totient is φ = 226666438.

The previous prime is 226666397. The next prime is 226666463. The reversal of 226666439 is 934666622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226666439 - 2⁸ = 226666183 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226666439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226666469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113333219 + 113333220.

It is an arithmetic number, because the mean of its divisors is an integer number (113333220).

Almost surely, 2^226666439 is an apocalyptic number.

226666439 is a deficient number, since it is larger than the sum of its proper divisors (1).

226666439 is an equidigital number, since it uses as much as digits as its factorization.

226666439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 44.

The square root of 226666439 is about 15055.4454932426. The cubic root of 226666439 is about 609.7180807819.

The spelling of 226666439 in words is "two hundred twenty-six million, six hundred sixty-six thousand, four hundred thirty-nine".