13143040240 has 160 divisors (see below), whose sum is σ = 36223395840. Its totient is φ = 4381516800.

The previous prime is 13143040217. The next prime is 13143040247. The reversal of 13143040240 is 4204034131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143040247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505642 + ... + 530998.

It is an arithmetic number, because the mean of its divisors is an integer number (226396224).

Almost surely, 2^13143040240 is an apocalyptic number.

13143040240 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 13143040240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18111697920).

13143040240 is an abundant number, since it is smaller than the sum of its proper divisors (23080355600).

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

13143040240 is a wasteful number, since it uses less digits than its factorization.

13143040240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25431 (or 25425 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13143040240 its reverse (4204034131), we get a palindrome (17347074371).

The spelling of 13143040240 in words is "thirteen billion, one hundred forty-three million, forty thousand, two hundred forty".