1226441443 has 4 divisors (see below), whose sum is σ = 1279765008. Its totient is φ = 1173117880.

The previous prime is 1226441441. The next prime is 1226441459. The reversal of 1226441443 is 3441446221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226441443 - 2¹ = 1226441441 is a prime.

It is a super-3 number, since 3×1226441443³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226441441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26661748 + ... + 26661793.

It is an arithmetic number, because the mean of its divisors is an integer number (319941252).

Almost surely, 2^1226441443 is an apocalyptic number.

1226441443 is a deficient number, since it is larger than the sum of its proper divisors (53323565).

1226441443 is an equidigital number, since it uses as much as digits as its factorization.

1226441443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53323564.

The product of its digits is 18432, while the sum is 31.

The square root of 1226441443 is about 35020.5859888152. The cubic root of 1226441443 is about 1070.4069965960.

Adding to 1226441443 its reverse (3441446221), we get a palindrome (4667887664).

The spelling of 1226441443 in words is "one billion, two hundred twenty-six million, four hundred forty-one thousand, four hundred forty-three".