13681128 has 16 divisors (see below), whose sum is σ = 34202880. Its totient is φ = 4560368.

The previous prime is 13681117. The next prime is 13681163. The reversal of 13681128 is 82118631.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13681095 and 13681104.

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, 285000 + ... + 285047.

It is an arithmetic number, because the mean of its divisors is an integer number (2137680).

Almost surely, 2^13681128 is an apocalyptic number.

It is an amenable number.

13681128 is an abundant number, since it is smaller than the sum of its proper divisors (20521752).

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

13681128 is a wasteful number, since it uses less digits than its factorization.

13681128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570056 (or 570052 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 13681128 is about 3698.8008867740. The cubic root of 13681128 is about 239.1703296122.

Adding to 13681128 its reverse (82118631), we get a palindrome (95799759).

The spelling of 13681128 in words is "thirteen million, six hundred eighty-one thousand, one hundred twenty-eight".