28441066444 has 48 divisors (see below), whose sum is σ = 57415857408. Its totient is φ = 12075167808.

The previous prime is 28441066399. The next prime is 28441066457. The reversal of 28441066444 is 44466014482.

It is a self number, because there is not a number n which added to its sum of digits gives 28441066444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1360479 + ... + 1381225.

It is an arithmetic number, because the mean of its divisors is an integer number (1196163696).

Almost surely, 2^28441066444 is an apocalyptic number.

It is an amenable number.

28441066444 is an abundant number, since it is smaller than the sum of its proper divisors (28974790964).

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

28441066444 is a wasteful number, since it uses less digits than its factorization.

28441066444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214 (or 21212 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 43.

The spelling of 28441066444 in words is "twenty-eight billion, four hundred forty-one million, sixty-six thousand, four hundred forty-four".