2320443312 has 80 divisors (see below), whose sum is σ = 6606993792. Its totient is φ = 695900160.

The previous prime is 2320443299. The next prime is 2320443317. The reversal of 2320443312 is 2133440232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2320443317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28563 + ... + 73869.

Almost surely, 2^2320443312 is an apocalyptic number.

2320443312 is a gapful number since it is divisible by the number (22) 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 2320443312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3303496896).

2320443312 is an abundant number, since it is smaller than the sum of its proper divisors (4286550480).

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

2320443312 is a wasteful number, since it uses less digits than its factorization.

2320443312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45426 (or 45420 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 2320443312 is about 48170.9799775757. The cubic root of 2320443312 is about 1323.9055040367.

Adding to 2320443312 its reverse (2133440232), we get a palindrome (4453883544).

The spelling of 2320443312 in words is "two billion, three hundred twenty million, four hundred forty-three thousand, three hundred twelve".