2143443040 has 24 divisors (see below), whose sum is σ = 5063884560. Its totient is φ = 857377152.

The previous prime is 2143443017. The next prime is 2143443053. The reversal of 2143443040 is 403443412.

It is a junction number, because it is equal to n+sod(n) for n = 2143442996 and 2143443014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6698100 + ... + 6698419.

It is an arithmetic number, because the mean of its divisors is an integer number (210995190).

Almost surely, 2^2143443040 is an apocalyptic number.

2143443040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143443040 is an abundant number, since it is smaller than the sum of its proper divisors (2920441520).

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

2143443040 is a wasteful number, since it uses less digits than its factorization.

2143443040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13396534 (or 13396526 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2143443040 is about 46297.3329685415. The cubic root of 2143443040 is about 1289.3494787125.

Adding to 2143443040 its reverse (403443412), we get a palindrome (2546886452).

The spelling of 2143443040 in words is "two billion, one hundred forty-three million, four hundred forty-three thousand, forty".