12926538 has 24 divisors (see below), whose sum is σ = 28325700. Its totient is φ = 4259904.

The previous prime is 12926527. The next prime is 12926539. The reversal of 12926538 is 83562921.

12926538 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9566649 + 3359889 = 3093^2 + 1833^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12926539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2433 + ... + 5636.

Almost surely, 2^12926538 is an apocalyptic number.

12926538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12926538 is an abundant number, since it is smaller than the sum of its proper divisors (15399162).

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

12926538 is a wasteful number, since it uses less digits than its factorization.

12926538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8166 (or 8163 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12926538 is about 3595.3494962243. The cubic root of 12926538 is about 234.6897248169.

The spelling of 12926538 in words is "twelve million, nine hundred twenty-six thousand, five hundred thirty-eight".