13328406 has 96 divisors (see below), whose sum is σ = 36341760. Its totient is φ = 3436992.

The previous prime is 13328353. The next prime is 13328417. The reversal of 13328406 is 60482331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13328406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129351 + ... + 129453.

It is an arithmetic number, because the mean of its divisors is an integer number (378560).

It is a vampire number, since it can be written as 3081 ⋅ 4326 (with its own digits).

Almost surely, 2^13328406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13328406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18170880).

13328406 is an abundant number, since it is smaller than the sum of its proper divisors (23013354).

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

13328406 is a wasteful number, since it uses less digits than its factorization.

13328406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13328406 is about 3650.8089514517. The cubic root of 13328406 is about 237.0970067022.

The spelling of 13328406 in words is "thirteen million, three hundred twenty-eight thousand, four hundred six".