13440260 has 24 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 5360864.

The previous prime is 13440241. The next prime is 13440269. The reversal of 13440260 is 6204431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13440269) 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, 8621 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^13440260 is an apocalyptic number.

13440260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440260 is an abundant number, since it is smaller than the sum of its proper divisors (14864380).

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

13440260 is a wasteful number, since it uses less digits than its factorization.

13440260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13440260 is about 3666.0960162003. The cubic root of 13440260 is about 237.7584112551.

Adding to 13440260 its reverse (6204431), we get a palindrome (19644691).

The spelling of 13440260 in words is "thirteen million, four hundred forty thousand, two hundred sixty".