2389289784 has 96 divisors (see below), whose sum is σ = 7172697600. Its totient is φ = 660623040.

The previous prime is 2389289731. The next prime is 2389289807. The reversal of 2389289784 is 4879829832.

2389289784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3687 + ... + 69225.

It is an arithmetic number, because the mean of its divisors is an integer number (74715600).

Almost surely, 2^2389289784 is an apocalyptic number.

2389289784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2389289784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586348800).

2389289784 is an abundant number, since it is smaller than the sum of its proper divisors (4783407816).

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

2389289784 is a wasteful number, since it uses less digits than its factorization.

2389289784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65593 (or 65582 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 60.

The square root of 2389289784 is about 48880.3619462868. The cubic root of 2389289784 is about 1336.8713270356.

The spelling of 2389289784 in words is "two billion, three hundred eighty-nine million, two hundred eighty-nine thousand, seven hundred eighty-four".