13228423884 has 144 divisors (see below), whose sum is σ = 38063450880. Its totient is φ = 3840048000.

The previous prime is 13228423867. The next prime is 13228423891. The reversal of 13228423884 is 48832482231.

13228423884 is a `hidden beast` number, since 1 + 3 + 228 + 42 + 388 + 4 = 666.

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, 2228929 + ... + 2234855.

It is an arithmetic number, because the mean of its divisors is an integer number (264329520).

Almost surely, 2^13228423884 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 13228423884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19031725440).

13228423884 is an abundant number, since it is smaller than the sum of its proper divisors (24835026996).

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

13228423884 is a wasteful number, since it uses less digits than its factorization.

13228423884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220 (or 6215 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The spelling of 13228423884 in words is "thirteen billion, two hundred twenty-eight million, four hundred twenty-three thousand, eight hundred eighty-four".