13640104420 has 24 divisors (see below), whose sum is σ = 28662089400. Its totient is φ = 5452637952.

The previous prime is 13640104417. The next prime is 13640104451. The reversal of 13640104420 is 2440104631.

13640104420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9350116416 + 4289988004 = 96696^2 + 65498^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179755 + ... + 244114.

It is an arithmetic number, because the mean of its divisors is an integer number (1194253725).

Almost surely, 2^13640104420 is an apocalyptic number.

13640104420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13640104420 is an abundant number, since it is smaller than the sum of its proper divisors (15021984980).

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

13640104420 is a wasteful number, since it uses less digits than its factorization.

13640104420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425487 (or 425485 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 13640104420 in words is "thirteen billion, six hundred forty million, one hundred four thousand, four hundred twenty".