13448538 has 64 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 4245696.

The previous prime is 13448521. The next prime is 13448543. The reversal of 13448538 is 83584431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105831 + ... + 105957.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^13448538 is an apocalyptic number.

13448538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13448538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

13448538 is an abundant number, since it is smaller than the sum of its proper divisors (18070182).

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

13448538 is a wasteful number, since it uses less digits than its factorization.

13448538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 13448538 is about 3667.2248363033. The cubic root of 13448538 is about 237.8072138873.

The spelling of 13448538 in words is "thirteen million, four hundred forty-eight thousand, five hundred thirty-eight".