12443305 has 12 divisors (see below), whose sum is σ = 17370180. Its totient is φ = 8532384.

The previous prime is 12443293. The next prime is 12443311. The reversal of 12443305 is 50334421.

It can be written as a sum of positive squares in 2 ways, for example, as 2119936 + 10323369 = 1456^2 + 3213^2 .

It is not a de Polignac number, because 12443305 - 2⁵ = 12443273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25150 + ... + 25639.

It is an arithmetic number, because the mean of its divisors is an integer number (1447515).

Almost surely, 2^12443305 is an apocalyptic number.

It is an amenable number.

12443305 is a deficient number, since it is larger than the sum of its proper divisors (4926875).

12443305 is an equidigital number, since it uses as much as digits as its factorization.

12443305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50808 (or 50801 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 12443305 is about 3527.5069099861. The cubic root of 12443305 is about 231.7280366946.

Adding to 12443305 its reverse (50334421), we get a palindrome (62777726).

The spelling of 12443305 in words is "twelve million, four hundred forty-three thousand, three hundred five".