13843415040 has 480 divisors, whose sum is σ = 54608171520. Its totient is φ = 2916089856.

The previous prime is 13843415023. The next prime is 13843415081. The reversal of 13843415040 is 4051434831.

It is a tau number, because it is divible by the number of its divisors (480).

It is a junction number, because it is equal to n+sod(n) for n = 13843414992 and 13843415010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22363851 + ... + 22364469.

It is an arithmetic number, because the mean of its divisors is an integer number (113767024).

Almost surely, 2^13843415040 is an apocalyptic number.

13843415040 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 13843415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27304085760).

13843415040 is an abundant number, since it is smaller than the sum of its proper divisors (40764756480).

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

13843415040 is an equidigital number, since it uses as much as digits as its factorization.

13843415040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 13843415040 its reverse (4051434831), we get a palindrome (17894849871).

The spelling of 13843415040 in words is "thirteen billion, eight hundred forty-three million, four hundred fifteen thousand, forty".