12013928 has 16 divisors (see below), whose sum is σ = 23712000. Its totient is φ = 5690736.

The previous prime is 12013919. The next prime is 12013931. The reversal of 12013928 is 82931021.

12013928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12013897 and 12013906.

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, 39368 + ... + 39671.

It is an arithmetic number, because the mean of its divisors is an integer number (1482000).

Almost surely, 2^12013928 is an apocalyptic number.

It is an amenable number.

12013928 is a deficient number, since it is larger than the sum of its proper divisors (11698072).

12013928 is a wasteful number, since it uses less digits than its factorization.

12013928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79064 (or 79060 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12013928 is about 3466.1113657815. Note that the first 3 decimals coincide. The cubic root of 12013928 is about 229.0313897082.

Adding to 12013928 its reverse (82931021), we get a palindrome (94944949).

The spelling of 12013928 in words is "twelve million, thirteen thousand, nine hundred twenty-eight".