13440004120 has 64 divisors (see below), whose sum is σ = 31744742400. Its totient is φ = 5114375040.

The previous prime is 13440004079. The next prime is 13440004121. The reversal of 13440004120 is 2140004431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440004121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18694 + ... + 165013.

It is an arithmetic number, because the mean of its divisors is an integer number (496011600).

Almost surely, 2^13440004120 is an apocalyptic number.

13440004120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440004120 is an abundant number, since it is smaller than the sum of its proper divisors (18304738280).

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

13440004120 is a wasteful number, since it uses less digits than its factorization.

13440004120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183808 (or 183804 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 13440004120 its reverse (2140004431), we get a palindrome (15580008551).

The spelling of 13440004120 in words is "thirteen billion, four hundred forty million, four thousand, one hundred twenty".