13107744 has 120 divisors (see below), whose sum is σ = 41621580. Its totient is φ = 4022784.

The previous prime is 13107727. The next prime is 13107751. The reversal of 13107744 is 44770131.

It can be written as a sum of positive squares in 2 ways, for example, as 11696400 + 1411344 = 3420^2 + 1188^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33502 + ... + 33890.

Almost surely, 2^13107744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13107744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20810790).

13107744 is an abundant number, since it is smaller than the sum of its proper divisors (28513836).

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

13107744 is a wasteful number, since it uses less digits than its factorization.

13107744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 13107744 is about 3620.4618489911. The cubic root of 13107744 is about 235.7812777707.

Adding to 13107744 its reverse (44770131), we get a palindrome (57877875).

The spelling of 13107744 in words is "thirteen million, one hundred seven thousand, seven hundred forty-four".