12628443 has 4 divisors (see below), whose sum is σ = 16837928. Its totient is φ = 8418960.

The previous prime is 12628423. The next prime is 12628457. The reversal of 12628443 is 34482621.

12628443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12628443 - 2⁵ = 12628411 is a prime.

It is a super-3 number, since 3×12628443³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12628443.

It is not an unprimeable number, because it can be changed into a prime (12628423) 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, 2104738 + ... + 2104743.

It is an arithmetic number, because the mean of its divisors is an integer number (4209482).

Almost surely, 2^12628443 is an apocalyptic number.

12628443 is a deficient number, since it is larger than the sum of its proper divisors (4209485).

12628443 is an equidigital number, since it uses as much as digits as its factorization.

12628443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209484.

The product of its digits is 9216, while the sum is 30.

The square root of 12628443 is about 3553.6520651296. The cubic root of 12628443 is about 232.8716405735.

The spelling of 12628443 in words is "twelve million, six hundred twenty-eight thousand, four hundred forty-three".