13403987020 has 24 divisors (see below), whose sum is σ = 28182609504. Its totient is φ = 5355073536.

The previous prime is 13403987017. The next prime is 13403987041. The reversal of 13403987020 is 2078930431.

13403987020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 390709 + ... + 423628.

It is an arithmetic number, because the mean of its divisors is an integer number (1174275396).

Almost surely, 2^13403987020 is an apocalyptic number.

13403987020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13403987020 is an abundant number, since it is smaller than the sum of its proper divisors (14778622484).

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

13403987020 is a wasteful number, since it uses less digits than its factorization.

13403987020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815169 (or 815167 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 13403987020 in words is "thirteen billion, four hundred three million, nine hundred eighty-seven thousand, twenty".