2309884128 has 144 divisors (see below), whose sum is σ = 6868592640. Its totient is φ = 763572096.

The previous prime is 2309884111. The next prime is 2309884141. The reversal of 2309884128 is 8214889032.

It is a tau number, because it is divible by the number of its divisors (144).

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, 986383 + ... + 988721.

It is an arithmetic number, because the mean of its divisors is an integer number (47698560).

Almost surely, 2^2309884128 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 2309884128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3434296320).

2309884128 is an abundant number, since it is smaller than the sum of its proper divisors (4558708512).

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

2309884128 is a wasteful number, since it uses less digits than its factorization.

2309884128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2309884128 is about 48061.2539162265. The cubic root of 2309884128 is about 1321.8943050146.

The spelling of 2309884128 in words is "two billion, three hundred nine million, eight hundred eighty-four thousand, one hundred twenty-eight".