12643026 has 16 divisors (see below), whose sum is σ = 27584928. Its totient is φ = 3831200.

The previous prime is 12643021. The next prime is 12643049. The reversal of 12643026 is 62034621.

It is a super-2 number, since 2×12643026² = 319692212873352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12642987 and 12643005.

It is not an unprimeable number, because it can be changed into a prime (12643021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95715 + ... + 95846.

It is an arithmetic number, because the mean of its divisors is an integer number (1724058).

Almost surely, 2^12643026 is an apocalyptic number.

12643026 is an abundant number, since it is smaller than the sum of its proper divisors (14941902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12643026 is a wasteful number, since it uses less digits than its factorization.

12643026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191577.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 12643026 is about 3555.7033059579. The cubic root of 12643026 is about 232.9612441449.

Adding to 12643026 its reverse (62034621), we get a palindrome (74677647).

The spelling of 12643026 in words is "twelve million, six hundred forty-three thousand, twenty-six".