13440402104 has 8 divisors (see below), whose sum is σ = 25200753960. Its totient is φ = 6720201048.

The previous prime is 13440402103. The next prime is 13440402127. The reversal of 13440402104 is 40120404431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13440402104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440402103) 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 as a sum of consecutive naturals, namely, 840025124 + ... + 840025139.

It is an arithmetic number, because the mean of its divisors is an integer number (3150094245).

Almost surely, 2^13440402104 is an apocalyptic number.

It is an amenable number.

13440402104 is a deficient number, since it is larger than the sum of its proper divisors (11760351856).

13440402104 is a wasteful number, since it uses less digits than its factorization.

13440402104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680050269 (or 1680050265 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13440402104 its reverse (40120404431), we get a palindrome (53560806535).

The spelling of 13440402104 in words is "thirteen billion, four hundred forty million, four hundred two thousand, one hundred four".