13322428 has 48 divisors (see below), whose sum is σ = 28191744. Its totient is φ = 5385600.

The previous prime is 13322399. The next prime is 13322429. The reversal of 13322428 is 82422331.

13322428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13322429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88153 + ... + 88303.

It is an arithmetic number, because the mean of its divisors is an integer number (587328).

Almost surely, 2^13322428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13322428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14095872).

13322428 is an abundant number, since it is smaller than the sum of its proper divisors (14869316).

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

13322428 is a wasteful number, since it uses less digits than its factorization.

13322428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 320 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 13322428 is about 3649.9901369730. The cubic root of 13322428 is about 237.0615541541.

Adding to 13322428 its reverse (82422331), we get a palindrome (95744759).

The spelling of 13322428 in words is "thirteen million, three hundred twenty-two thousand, four hundred twenty-eight".