13340044240 has 40 divisors (see below), whose sum is σ = 31065824160. Its totient is φ = 5327377536.

The previous prime is 13340044231. The next prime is 13340044247. The reversal of 13340044240 is 4244004331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13340044247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85174 + ... + 184213.

It is an arithmetic number, because the mean of its divisors is an integer number (776645604).

Almost surely, 2^13340044240 is an apocalyptic number.

13340044240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13340044240 is an abundant number, since it is smaller than the sum of its proper divisors (17725779920).

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

13340044240 is a wasteful number, since it uses less digits than its factorization.

13340044240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270019 (or 270013 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 13340044240 its reverse (4244004331), we get a palindrome (17584048571).

The spelling of 13340044240 in words is "thirteen billion, three hundred forty million, forty-four thousand, two hundred forty".