13117040 has 40 divisors (see below), whose sum is σ = 30788208. Its totient is φ = 5196800.

The previous prime is 13117031. The next prime is 13117067. The reversal of 13117040 is 4071131.

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

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, 8315 + ... + 9765.

Almost surely, 2^13117040 is an apocalyptic number.

13117040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13117040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15394104).

13117040 is an abundant number, since it is smaller than the sum of its proper divisors (17671168).

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

13117040 is a wasteful number, since it uses less digits than its factorization.

13117040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 13117040 is about 3621.7454355600. The cubic root of 13117040 is about 235.8370032212.

Adding to 13117040 its reverse (4071131), we get a palindrome (17188171).

It can be divided in two parts, 131 and 17040, that added together give a palindrome (17171).

The spelling of 13117040 in words is "thirteen million, one hundred seventeen thousand, forty".