13128460 has 12 divisors (see below), whose sum is σ = 27569808. Its totient is φ = 5251376.

The previous prime is 13128443. The next prime is 13128461. The reversal of 13128460 is 6482131.

It is not an unprimeable number, because it can be changed into a prime (13128461) 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, 328192 + ... + 328231.

It is an arithmetic number, because the mean of its divisors is an integer number (2297484).

Almost surely, 2^13128460 is an apocalyptic number.

13128460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13128460 is an abundant number, since it is smaller than the sum of its proper divisors (14441348).

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

13128460 is a wasteful number, since it uses less digits than its factorization.

13128460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656432 (or 656430 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13128460 is about 3623.3216804474. The cubic root of 13128460 is about 235.9054250946.

The spelling of 13128460 in words is "thirteen million, one hundred twenty-eight thousand, four hundred sixty".