13340034440 has 64 divisors (see below), whose sum is σ = 30781935360. Its totient is φ = 5200634880.

The previous prime is 13340034377. The next prime is 13340034443. The reversal of 13340034440 is 4443004331.

It is a super-2 number, since 2×13340034440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13340034443) 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, 438359 + ... + 467801.

It is an arithmetic number, because the mean of its divisors is an integer number (480967740).

Almost surely, 2^13340034440 is an apocalyptic number.

13340034440 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 13340034440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15390967680).

13340034440 is an abundant number, since it is smaller than the sum of its proper divisors (17441900920).

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

13340034440 is a wasteful number, since it uses less digits than its factorization.

13340034440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29742 (or 29738 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 13340034440 its reverse (4443004331), we get a palindrome (17783038771).

The spelling of 13340034440 in words is "thirteen billion, three hundred forty million, thirty-four thousand, four hundred forty".