13440580 has 12 divisors (see below), whose sum is σ = 28225260. Its totient is φ = 5376224.

The previous prime is 13440569. The next prime is 13440587. The reversal of 13440580 is 8504431.

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 8714304 = 2174^2 + 2952^2 .

It is not an unprimeable number, because it can be changed into a prime (13440587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335995 + ... + 336034.

It is an arithmetic number, because the mean of its divisors is an integer number (2352105).

Almost surely, 2^13440580 is an apocalyptic number.

13440580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440580 is an abundant number, since it is smaller than the sum of its proper divisors (14784680).

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

13440580 is a wasteful number, since it uses less digits than its factorization.

13440580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672038 (or 672036 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13440580 is about 3666.1396590965. The cubic root of 13440580 is about 237.7602981752.

The spelling of 13440580 in words is "thirteen million, four hundred forty thousand, five hundred eighty".