2143338812 has 24 divisors (see below), whose sum is σ = 4019711136. Its totient is φ = 997368768.

The previous prime is 2143338811. The next prime is 2143338823. The reversal of 2143338812 is 2188333412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143338811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311423 + ... + 318230.

It is an arithmetic number, because the mean of its divisors is an integer number (167487964).

Almost surely, 2^2143338812 is an apocalyptic number.

It is an amenable number.

2143338812 is a deficient number, since it is larger than the sum of its proper divisors (1876372324).

2143338812 is a wasteful number, since it uses less digits than its factorization.

2143338812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629717 (or 629715 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 2143338812 is about 46296.2073176626. The cubic root of 2143338812 is about 1289.3285795496.

The spelling of 2143338812 in words is "two billion, one hundred forty-three million, three hundred thirty-eight thousand, eight hundred twelve".