2138310720 has 672 divisors, whose sum is σ = 9319564800. Its totient is φ = 437944320.

The previous prime is 2138310709. The next prime is 2138310739. The reversal of 2138310720 is 270138312.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10745181 + ... + 10745379.

It is an arithmetic number, because the mean of its divisors is an integer number (13868400).

Almost surely, 2^2138310720 is an apocalyptic number.

2138310720 is a gapful number since it is divisible by the number (20) 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 2138310720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4659782400).

2138310720 is an abundant number, since it is smaller than the sum of its proper divisors (7181254080).

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

2138310720 is a wasteful number, since it uses less digits than its factorization.

2138310720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2138310720 is about 46241.8719344276. The cubic root of 2138310720 is about 1288.3195714368.

The spelling of 2138310720 in words is "two billion, one hundred thirty-eight million, three hundred ten thousand, seven hundred twenty".