2289443884 has 96 divisors (see below), whose sum is σ = 5073094656. Its totient is φ = 879932160.

The previous prime is 2289443867. The next prime is 2289443909. The reversal of 2289443884 is 4883449822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2788194 + ... + 2789014.

It is an arithmetic number, because the mean of its divisors is an integer number (52844736).

Almost surely, 2^2289443884 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 2289443884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2536547328).

2289443884 is an abundant number, since it is smaller than the sum of its proper divisors (2783650772).

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

2289443884 is a wasteful number, since it uses less digits than its factorization.

2289443884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1053 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The square root of 2289443884 is about 47848.1335477153. The cubic root of 2289443884 is about 1317.9835841568.

The spelling of 2289443884 in words is "two billion, two hundred eighty-nine million, four hundred forty-three thousand, eight hundred eighty-four".