13443828 has 12 divisors (see below), whose sum is σ = 31368960. Its totient is φ = 4481272.

The previous prime is 13443827. The next prime is 13443847. The reversal of 13443828 is 82834431.

13443828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×13443828² = 361473022587168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443827) 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, 560148 + ... + 560171.

It is an arithmetic number, because the mean of its divisors is an integer number (2614080).

Almost surely, 2^13443828 is an apocalyptic number.

It is an amenable number.

13443828 is an abundant number, since it is smaller than the sum of its proper divisors (17925132).

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

13443828 is a wasteful number, since it uses less digits than its factorization.

13443828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120326 (or 1120324 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 13443828 is about 3666.5826050970. The cubic root of 13443828 is about 237.7794487190.

The spelling of 13443828 in words is "thirteen million, four hundred forty-three thousand, eight hundred twenty-eight".