13665460 has 12 divisors (see below), whose sum is σ = 28697508. Its totient is φ = 5466176.

The previous prime is 13665413. The next prime is 13665481. The reversal of 13665460 is 6456631.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 8076964 = 2364^2 + 2842^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341617 + ... + 341656.

It is an arithmetic number, because the mean of its divisors is an integer number (2391459).

Almost surely, 2^13665460 is an apocalyptic number.

13665460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13665460 is an abundant number, since it is smaller than the sum of its proper divisors (15032048).

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

13665460 is a wasteful number, since it uses less digits than its factorization.

13665460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683282 (or 683280 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 13665460 is about 3696.6822963300. The cubic root of 13665460 is about 239.0789932802.

The spelling of 13665460 in words is "thirteen million, six hundred sixty-five thousand, four hundred sixty".