13344660 has 216 divisors, whose sum is σ = 50417640. Its totient is φ = 2838528.

The previous prime is 13344641. The next prime is 13344671. The reversal of 13344660 is 6644331.

It can be written as a sum of positive squares in 4 ways, for example, as 1192464 + 12152196 = 1092^2 + 3486^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 149896 + ... + 149984.

It is an arithmetic number, because the mean of its divisors is an integer number (233415).

Almost surely, 2^13344660 is an apocalyptic number.

13344660 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 13344660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25208820).

13344660 is an abundant number, since it is smaller than the sum of its proper divisors (37072980).

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

13344660 is a wasteful number, since it uses less digits than its factorization.

13344660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 13344660 is about 3653.0343551628. The cubic root of 13344660 is about 237.1933475361.

Adding to 13344660 its reverse (6644331), we get a palindrome (19988991).

The spelling of 13344660 in words is "thirteen million, three hundred forty-four thousand, six hundred sixty".