13884660 has 36 divisors (see below), whose sum is σ = 42117348. Its totient is φ = 3702528.

The previous prime is 13884659. The next prime is 13884667. The reversal of 13884660 is 6648831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9771876 + 4112784 = 3126^2 + 2028^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13884667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38389 + ... + 38748.

Almost surely, 2^13884660 is an apocalyptic number.

13884660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13884660 is an abundant number, since it is smaller than the sum of its proper divisors (28232688).

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

13884660 is a wasteful number, since it uses less digits than its factorization.

13884660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77152 (or 77147 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 13884660 is about 3726.2125543238. The cubic root of 13884660 is about 240.3505294553.

The spelling of 13884660 in words is "thirteen million, eight hundred eighty-four thousand, six hundred sixty".