13130440 has 32 divisors (see below), whose sum is σ = 29839680. Its totient is φ = 5199552.

The previous prime is 13130419. The next prime is 13130441. The reversal of 13130440 is 4403131.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13130441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2527 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (932490).

Almost surely, 2^13130440 is an apocalyptic number.

13130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130440 is an abundant number, since it is smaller than the sum of its proper divisors (16709240).

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

13130440 is a wasteful number, since it uses less digits than its factorization.

13130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301 (or 3297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13130440 is about 3623.5949000958. The cubic root of 13130440 is about 235.9172840448.

Adding to 13130440 its reverse (4403131), we get a palindrome (17533571).

The spelling of 13130440 in words is "thirteen million, one hundred thirty thousand, four hundred forty".