13113040 has 40 divisors (see below), whose sum is σ = 32096160. Its totient is φ = 4968576.

The previous prime is 13113029. The next prime is 13113053. The reversal of 13113040 is 4031131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13113040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 5833.

It is an arithmetic number, because the mean of its divisors is an integer number (802404).

Almost surely, 2^13113040 is an apocalyptic number.

13113040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113040 is an abundant number, since it is smaller than the sum of its proper divisors (18983120).

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

13113040 is a wasteful number, since it uses less digits than its factorization.

13113040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659 (or 8653 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13113040 is about 3621.1931735272. The cubic root of 13113040 is about 235.8130282004.

Adding to 13113040 its reverse (4031131), we get a palindrome (17144171).

The spelling of 13113040 in words is "thirteen million, one hundred thirteen thousand, forty".