13438026 has 48 divisors (see below), whose sum is σ = 34729344. Its totient is φ = 3671712.

The previous prime is 13438013. The next prime is 13438031. The reversal of 13438026 is 62083431.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (723528).

Almost surely, 2^13438026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13438026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17364672).

13438026 is an abundant number, since it is smaller than the sum of its proper divisors (21291318).

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

13438026 is a wasteful number, since it uses less digits than its factorization.

13438026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675 (or 4672 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13438026 is about 3665.7913197562. The cubic root of 13438026 is about 237.7452373601.

The spelling of 13438026 in words is "thirteen million, four hundred thirty-eight thousand, twenty-six".