226788447 has 4 divisors (see below), whose sum is σ = 302384600. Its totient is φ = 151192296.

The previous prime is 226788437. The next prime is 226788451. The reversal of 226788447 is 744887622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 226788447 - 2⁶ = 226788383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226788396 and 226788405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226788437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37798072 + ... + 37798077.

It is an arithmetic number, because the mean of its divisors is an integer number (75596150).

Almost surely, 2^226788447 is an apocalyptic number.

226788447 is a deficient number, since it is larger than the sum of its proper divisors (75596153).

226788447 is an equidigital number, since it uses as much as digits as its factorization.

226788447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75596152.

The product of its digits is 1204224, while the sum is 48.

The square root of 226788447 is about 15059.4969039474. The cubic root of 226788447 is about 609.8274590391.

It can be divided in two parts, 22678 and 8447, that added together give a triangular number (31125 = T₂₄₉).

The spelling of 226788447 in words is "two hundred twenty-six million, seven hundred eighty-eight thousand, four hundred forty-seven".