13143828 has 12 divisors (see below), whose sum is σ = 30668960. Its totient is φ = 4381272.

The previous prime is 13143827. The next prime is 13143847. The reversal of 13143828 is 82834131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13143795 and 13143804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143827) 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, 547648 + ... + 547671.

Almost surely, 2^13143828 is an apocalyptic number.

It is an amenable number.

13143828 is an abundant number, since it is smaller than the sum of its proper divisors (17525132).

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

13143828 is a wasteful number, since it uses less digits than its factorization.

13143828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095326 (or 1095324 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 13143828 is about 3625.4417661852. The cubic root of 13143828 is about 235.9974384477.

Adding to 13143828 its reverse (82834131), we get a palindrome (95977959).

The spelling of 13143828 in words is "thirteen million, one hundred forty-three thousand, eight hundred twenty-eight".