2143806528 has 28 divisors (see below), whose sum is σ = 5672155280. Its totient is φ = 714602112.

The previous prime is 2143806523. The next prime is 2143806557. The reversal of 2143806528 is 8256083412.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2143806521) 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 3 ways as a sum of consecutive naturals, for example, 5582638 + ... + 5583021.

Almost surely, 2^2143806528 is an apocalyptic number.

It is an amenable number.

2143806528 is an abundant number, since it is smaller than the sum of its proper divisors (3528348752).

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

2143806528 is a wasteful number, since it uses less digits than its factorization.

2143806528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165674 (or 11165664 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 2143806528 is about 46301.2583846271. The cubic root of 2143806528 is about 1289.4223578086.

The spelling of 2143806528 in words is "two billion, one hundred forty-three million, eight hundred six thousand, five hundred twenty-eight".