13644128 has 24 divisors (see below), whose sum is σ = 28276920. Its totient is φ = 6462720.

The previous prime is 13644107. The next prime is 13644133. The reversal of 13644128 is 82144631.

It is a self number, because there is not a number n which added to its sum of digits gives 13644128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10613 + ... + 11828.

It is an arithmetic number, because the mean of its divisors is an integer number (1178205).

Almost surely, 2^13644128 is an apocalyptic number.

It is an amenable number.

13644128 is an abundant number, since it is smaller than the sum of its proper divisors (14632792).

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

13644128 is a wasteful number, since it uses less digits than its factorization.

13644128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22470 (or 22462 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 13644128 is about 3693.7958795797. The cubic root of 13644128 is about 238.9545264582.

Adding to 13644128 its reverse (82144631), we get a palindrome (95788759).

The spelling of 13644128 in words is "thirteen million, six hundred forty-four thousand, one hundred twenty-eight".