13843020 has 48 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 3496896.

The previous prime is 13843013. The next prime is 13843021. The reversal of 13843020 is 2034831.

It is a happy number.

13843020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13843021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4932 + ... + 7211.

It is an arithmetic number, because the mean of its divisors is an integer number (850080).

Almost surely, 2^13843020 is an apocalyptic number.

13843020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13843020 is an abundant number, since it is smaller than the sum of its proper divisors (26960820).

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

13843020 is a wasteful number, since it uses less digits than its factorization.

13843020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12174 (or 12172 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13843020 is about 3720.6209159225. The cubic root of 13843020 is about 240.1100190027.

Adding to 13843020 its reverse (2034831), we get a palindrome (15877851).

The spelling of 13843020 in words is "thirteen million, eight hundred forty-three thousand, twenty".