888864444 has 72 divisors (see below), whose sum is σ = 2424279312. Its totient is φ = 272977920.

The previous prime is 888864433. The next prime is 888864451. The reversal of 888864444 is 444468888.

It is a happy number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298507 + ... + 301469.

It is an arithmetic number, because the mean of its divisors is an integer number (33670546).

Almost surely, 2^888864444 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 888864444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1212139656).

888864444 is an abundant number, since it is smaller than the sum of its proper divisors (1535414868).

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

888864444 is a wasteful number, since it uses less digits than its factorization.

888864444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627 (or 3622 counting only the distinct ones).

The product of its digits is 6291456, while the sum is 54.

The square root of 888864444 is about 29813.8297439292. The cubic root of 888864444 is about 961.4908995499.

The spelling of 888864444 in words is "eight hundred eighty-eight million, eight hundred sixty-four thousand, four hundred forty-four".