13500044 has 12 divisors (see below), whose sum is σ = 23658600. Its totient is φ = 6740448.

The previous prime is 13500037. The next prime is 13500049. The reversal of 13500044 is 44000531.

It is a junction number, because it is equal to n+sod(n) for n = 13499995 and 13500031.

It is not an unprimeable number, because it can be changed into a prime (13500049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (1971550).

Almost surely, 2^13500044 is an apocalyptic number.

It is an amenable number.

13500044 is a deficient number, since it is larger than the sum of its proper divisors (10158556).

13500044 is a wasteful number, since it uses less digits than its factorization.

13500044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 13500044 is about 3674.2406018115. The cubic root of 13500044 is about 238.1104164825.

Adding to 13500044 its reverse (44000531), we get a palindrome (57500575).

The spelling of 13500044 in words is "thirteen million, five hundred thousand, forty-four".