13481244 has 72 divisors (see below), whose sum is σ = 39629408. Its totient is φ = 3784320.

The previous prime is 13481227. The next prime is 13481257. The reversal of 13481244 is 44218431.

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 23 ways as a sum of consecutive naturals, for example, 14934 + ... + 15810.

Almost surely, 2^13481244 is an apocalyptic number.

13481244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13481244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19814704).

13481244 is an abundant number, since it is smaller than the sum of its proper divisors (26148164).

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

13481244 is a wasteful number, since it uses less digits than its factorization.

13481244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 950 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 13481244 is about 3671.6813587238. The cubic root of 13481244 is about 237.9998352281. Note that the first 3 decimals are identical.

Adding to 13481244 its reverse (44218431), we get a palindrome (57699675).

The spelling of 13481244 in words is "thirteen million, four hundred eighty-one thousand, two hundred forty-four".