2143896916 has 24 divisors (see below), whose sum is σ = 4379026176. Its totient is φ = 899263200.

The previous prime is 2143896893. The next prime is 2143896917. The reversal of 2143896916 is 6196983412.

It is a happy number.

It is a super-2 number, since 2×2143896916² = 9192587972868622112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2143896916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143896917) 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, 813235 + ... + 815866.

It is an arithmetic number, because the mean of its divisors is an integer number (182459424).

Almost surely, 2^2143896916 is an apocalyptic number.

It is an amenable number.

2143896916 is an abundant number, since it is smaller than the sum of its proper divisors (2235129260).

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

2143896916 is a wasteful number, since it uses less digits than its factorization.

2143896916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629159 (or 1629157 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 2143896916 is about 46302.2344601208. The cubic root of 2143896916 is about 1289.4404792620.

The spelling of 2143896916 in words is "two billion, one hundred forty-three million, eight hundred ninety-six thousand, nine hundred sixteen".