13043928 has 16 divisors (see below), whose sum is σ = 32609880. Its totient is φ = 4347968.

The previous prime is 13043923. The next prime is 13043941. The reversal of 13043928 is 82934031.

It is a junction number, because it is equal to n+sod(n) for n = 13043895 and 13043904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043923) 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, 271725 + ... + 271772.

Almost surely, 2^13043928 is an apocalyptic number.

It is an amenable number.

13043928 is an abundant number, since it is smaller than the sum of its proper divisors (19565952).

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

13043928 is a wasteful number, since it uses less digits than its factorization.

13043928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543506 (or 543502 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 13043928 is about 3611.6378555996. The cubic root of 13043928 is about 235.3980157134.

Adding to 13043928 its reverse (82934031), we get a palindrome (95977959).

The spelling of 13043928 in words is "thirteen million, forty-three thousand, nine hundred twenty-eight".