13138448 has 10 divisors (see below), whose sum is σ = 25455774. Its totient is φ = 6569216.

The previous prime is 13138439. The next prime is 13138453. The reversal of 13138448 is 84483131.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 2458624 = 3268^2 + 1568^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410561 + ... + 410592.

Almost surely, 2^13138448 is an apocalyptic number.

It is an amenable number.

13138448 is a deficient number, since it is larger than the sum of its proper divisors (12317326).

13138448 is an equidigital number, since it uses as much as digits as its factorization.

13138448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821161 (or 821155 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 13138448 is about 3624.6997117003. The cubic root of 13138448 is about 235.9652347526.

The spelling of 13138448 in words is "thirteen million, one hundred thirty-eight thousand, four hundred forty-eight".