13238864 has 10 divisors (see below), whose sum is σ = 25650330. Its totient is φ = 6619424.

The previous prime is 13238857. The next prime is 13238879. The reversal of 13238864 is 46883231.

It is a happy number.

13238864 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in only one way, i.e., 12902464 + 336400 = 3592^2 + 580^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413699 + ... + 413730.

It is an arithmetic number, because the mean of its divisors is an integer number (2565033).

Almost surely, 2^13238864 is an apocalyptic number.

It is an amenable number.

13238864 is a deficient number, since it is larger than the sum of its proper divisors (12411466).

13238864 is an equidigital number, since it uses as much as digits as its factorization.

13238864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827437 (or 827431 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 13238864 is about 3638.5249758659. The cubic root of 13238864 is about 236.5648635308.

The spelling of 13238864 in words is "thirteen million, two hundred thirty-eight thousand, eight hundred sixty-four".