2152320320 has 112 divisors (see below), whose sum is σ = 5232806400. Its totient is φ = 843042816.

The previous prime is 2152320281. The next prime is 2152320337. The reversal of 2152320320 is 230232512.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2152320292 and 2152320301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4648409 + ... + 4648871.

Almost surely, 2^2152320320 is an apocalyptic number.

2152320320 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 2152320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2616403200).

2152320320 is an abundant number, since it is smaller than the sum of its proper divisors (3080486080).

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

2152320320 is a wasteful number, since it uses less digits than its factorization.

2152320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2152320320 is about 46393.1063844619. The cubic root of 2152320320 is about 1291.1270162105.

Adding to 2152320320 its reverse (230232512), we get a palindrome (2382552832).

The spelling of 2152320320 in words is "two billion, one hundred fifty-two million, three hundred twenty thousand, three hundred twenty".