13443040 has 96 divisors (see below), whose sum is σ = 35816256. Its totient is φ = 4730880.

The previous prime is 13443011. The next prime is 13443049. The reversal of 13443040 is 4034431.

It is a junction number, because it is equal to n+sod(n) for n = 13442999 and 13443017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47700 + ... + 47980.

It is an arithmetic number, because the mean of its divisors is an integer number (373086).

Almost surely, 2^13443040 is an apocalyptic number.

13443040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13443040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17908128).

13443040 is an abundant number, since it is smaller than the sum of its proper divisors (22373216).

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

13443040 is a wasteful number, since it uses less digits than its factorization.

13443040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 13443040 is about 3666.4751465133. The cubic root of 13443040 is about 237.7748028729.

Adding to 13443040 its reverse (4034431), we get a palindrome (17477471).

The spelling of 13443040 in words is "thirteen million, four hundred forty-three thousand, forty".