2139441344 has 56 divisors (see below), whose sum is σ = 4525670400. Its totient is φ = 1000546560.

The previous prime is 2139441329. The next prime is 2139441361. The reversal of 2139441344 is 4431449312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84929 + ... + 107199.

Almost surely, 2^2139441344 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 2139441344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2262835200).

2139441344 is an abundant number, since it is smaller than the sum of its proper divisors (2386229056).

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

2139441344 is a wasteful number, since it uses less digits than its factorization.

2139441344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22381 (or 22371 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 2139441344 is about 46254.0954294860. The cubic root of 2139441344 is about 1288.5465961880.

The spelling of 2139441344 in words is "two billion, one hundred thirty-nine million, four hundred forty-one thousand, three hundred forty-four".