2143505824 has 48 divisors (see below), whose sum is σ = 4449816000. Its totient is φ = 1013589504.

The previous prime is 2143505773. The next prime is 2143505827. The reversal of 2143505824 is 4285053412.

It is a self number, because there is not a number n which added to its sum of digits gives 2143505824.

It is not an unprimeable number, because it can be changed into a prime (2143505827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390652 + ... + 396100.

It is an arithmetic number, because the mean of its divisors is an integer number (92704500).

Almost surely, 2^2143505824 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 2143505824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2224908000).

2143505824 is an abundant number, since it is smaller than the sum of its proper divisors (2306310176).

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

2143505824 is a wasteful number, since it uses less digits than its factorization.

2143505824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125 (or 6117 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 2143505824 is about 46298.0110155933. The cubic root of 2143505824 is about 1289.3620674504.

The spelling of 2143505824 in words is "two billion, one hundred forty-three million, five hundred five thousand, eight hundred twenty-four".