14130728 has 16 divisors (see below), whose sum is σ = 26690580. Its totient is φ = 7013248.

The previous prime is 14130719. The next prime is 14130733. The reversal of 14130728 is 82703141.

It can be written as a sum of positive squares in 2 ways, for example, as 14002564 + 128164 = 3742^2 + 358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14130697 and 14130706.

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 3 ways as a sum of consecutive naturals, for example, 5351 + ... + 7542.

Almost surely, 2^14130728 is an apocalyptic number.

It is an amenable number.

14130728 is a deficient number, since it is larger than the sum of its proper divisors (12559852).

14130728 is a wasteful number, since it uses less digits than its factorization.

14130728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13036 (or 13032 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 14130728 is about 3759.0860591372. The cubic root of 14130728 is about 241.7620774804.

Adding to 14130728 its reverse (82703141), we get a palindrome (96833869).

The spelling of 14130728 in words is "fourteen million, one hundred thirty thousand, seven hundred twenty-eight".