13191828 has 48 divisors (see below), whose sum is σ = 33511296. Its totient is φ = 4014720.

The previous prime is 13191821. The next prime is 13191883. The reversal of 13191828 is 82819131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191821) 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, 15658 + ... + 16478.

It is an arithmetic number, because the mean of its divisors is an integer number (698152).

Almost surely, 2^13191828 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 13191828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16755648).

13191828 is an abundant number, since it is smaller than the sum of its proper divisors (20319468).

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

13191828 is a wasteful number, since it uses less digits than its factorization.

13191828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 942 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 13191828 is about 3632.0556163143. The cubic root of 13191828 is about 236.2843694573.

The spelling of 13191828 in words is "thirteen million, one hundred ninety-one thousand, eight hundred twenty-eight".