2143795808 has 48 divisors (see below), whose sum is σ = 5262050304. Its totient is φ = 835244160.

The previous prime is 2143795807. The next prime is 2143795817. The reversal of 2143795808 is 8085973412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143795807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432560 + ... + 437487.

It is an arithmetic number, because the mean of its divisors is an integer number (109626048).

Almost surely, 2^2143795808 is an apocalyptic number.

2143795808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2143795808 is an abundant number, since it is smaller than the sum of its proper divisors (3118254496).

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

2143795808 is a wasteful number, since it uses less digits than its factorization.

2143795808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870075 (or 870067 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 2143795808 is about 46301.1426208900. The cubic root of 2143795808 is about 1289.4202085738.

The spelling of 2143795808 in words is "two billion, one hundred forty-three million, seven hundred ninety-five thousand, eight hundred eight".