13660860 has 96 divisors (see below), whose sum is σ = 41368320. Its totient is φ = 3355648.

The previous prime is 13660859. The next prime is 13660891. The reversal of 13660860 is 6806631.

13660860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60067 + ... + 60293.

It is an arithmetic number, because the mean of its divisors is an integer number (430920).

Almost surely, 2^13660860 is an apocalyptic number.

13660860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13660860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20684160).

13660860 is an abundant number, since it is smaller than the sum of its proper divisors (27707460).

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

13660860 is a wasteful number, since it uses less digits than its factorization.

13660860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 13660860 is about 3696.0600644470. The cubic root of 13660860 is about 239.0521644043.

The spelling of 13660860 in words is "thirteen million, six hundred sixty thousand, eight hundred sixty".