2132801720 has 128 divisors (see below), whose sum is σ = 5732812800. Its totient is φ = 698858496.

The previous prime is 2132801717. The next prime is 2132801773. The reversal of 2132801720 is 271082312.

It is a self number, because there is not a number n which added to its sum of digits gives 2132801720.

It is a congruent number.

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, 563996 + ... + 567764.

It is an arithmetic number, because the mean of its divisors is an integer number (44787600).

Almost surely, 2^2132801720 is an apocalyptic number.

2132801720 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 2132801720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866406400).

2132801720 is an abundant number, since it is smaller than the sum of its proper divisors (3600011080).

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

2132801720 is a wasteful number, since it uses less digits than its factorization.

2132801720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2132801720 is about 46182.2662934594. The cubic root of 2132801720 is about 1287.2122399595.

The spelling of 2132801720 in words is "two billion, one hundred thirty-two million, eight hundred one thousand, seven hundred twenty".