13294344840 has 288 divisors, whose sum is σ = 48972703680. Its totient is φ = 2878315776.

The previous prime is 13294344799. The next prime is 13294344841. The reversal of 13294344840 is 4844349231.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 13294344792 and 13294344801.

It is not an unprimeable number, because it can be changed into a prime (13294344841) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2119549 + ... + 2125811.

It is an arithmetic number, because the mean of its divisors is an integer number (170044110).

Almost surely, 2^13294344840 is an apocalyptic number.

13294344840 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 13294344840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24486351840).

13294344840 is an abundant number, since it is smaller than the sum of its proper divisors (35678358840).

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

13294344840 is a wasteful number, since it uses less digits than its factorization.

13294344840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329 (or 6299 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 13294344840 in words is "thirteen billion, two hundred ninety-four million, three hundred forty-four thousand, eight hundred forty".