889943880 has 384 divisors, whose sum is σ = 3412886400. Its totient is φ = 184246272.

The previous prime is 889943861. The next prime is 889943893. The reversal of 889943880 is 88349988.

889943880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 889943880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2898687 + ... + 2898993.

It is an arithmetic number, because the mean of its divisors is an integer number (8887725).

Almost surely, 2^889943880 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 889943880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706443200).

889943880 is an abundant number, since it is smaller than the sum of its proper divisors (2522942520).

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

889943880 is a wasteful number, since it uses less digits than its factorization.

889943880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 57.

The square root of 889943880 is about 29831.9271921879. The cubic root of 889943880 is about 961.8799532660.

The spelling of 889943880 in words is "eight hundred eighty-nine million, nine hundred forty-three thousand, eight hundred eighty".