13328712 has 80 divisors (see below), whose sum is σ = 38013360. Its totient is φ = 4362336.

The previous prime is 13328701. The next prime is 13328713. The reversal of 13328712 is 21782331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13328713) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43263 + ... + 43569.

It is an arithmetic number, because the mean of its divisors is an integer number (475167).

Almost surely, 2^13328712 is an apocalyptic number.

13328712 is a gapful number since it is divisible by the number (12) 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 13328712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19006680).

13328712 is an abundant number, since it is smaller than the sum of its proper divisors (24684648).

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

13328712 is a wasteful number, since it uses less digits than its factorization.

13328712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 379 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 13328712 is about 3650.8508597312. The cubic root of 13328712 is about 237.0988211509.

The spelling of 13328712 in words is "thirteen million, three hundred twenty-eight thousand, seven hundred twelve".