13080840 has 64 divisors (see below), whose sum is σ = 39908160. Its totient is φ = 3429120.

The previous prime is 13080833. The next prime is 13080863. The reversal of 13080840 is 4808031.

It is a super-2 number, since 2×13080840² = 342216750211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13080840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6427 + ... + 8213.

It is an arithmetic number, because the mean of its divisors is an integer number (623565).

Almost surely, 2^13080840 is an apocalyptic number.

13080840 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 13080840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19954080).

13080840 is an abundant number, since it is smaller than the sum of its proper divisors (26827320).

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

13080840 is a wasteful number, since it uses less digits than its factorization.

13080840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 13080840 is about 3616.7443924060. The cubic root of 13080840 is about 235.6198514543.

Adding to 13080840 its reverse (4808031), we get a palindrome (17888871).

The spelling of 13080840 in words is "thirteen million, eighty thousand, eight hundred forty".