13266438 has 16 divisors (see below), whose sum is σ = 26725440. Its totient is φ = 4390056.

The previous prime is 13266437. The next prime is 13266439. The reversal of 13266438 is 83466231.

It is an interprime number because it is at equal distance from previous prime (13266437) and next prime (13266439).

It is a junction number, because it is equal to n+sod(n) for n = 13266399 and 13266408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266431) 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, 7120 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (1670340).

Almost surely, 2^13266438 is an apocalyptic number.

13266438 is an abundant number, since it is smaller than the sum of its proper divisors (13459002).

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

13266438 is a wasteful number, since it uses less digits than its factorization.

13266438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16051.

The product of its digits is 20736, while the sum is 33.

The square root of 13266438 is about 3642.3121777245. The cubic root of 13266438 is about 236.7289892956.

The spelling of 13266438 in words is "thirteen million, two hundred sixty-six thousand, four hundred thirty-eight".