2143020344 has 16 divisors (see below), whose sum is σ = 4029361200. Its totient is φ = 1068524032.

The previous prime is 2143020311. The next prime is 2143020389. The reversal of 2143020344 is 4430203412.

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, 370217 + ... + 375960.

It is an arithmetic number, because the mean of its divisors is an integer number (251835075).

Almost surely, 2^2143020344 is an apocalyptic number.

It is an amenable number.

2143020344 is a deficient number, since it is larger than the sum of its proper divisors (1886340856).

2143020344 is a wasteful number, since it uses less digits than its factorization.

2143020344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746542 (or 746538 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2143020344 is about 46292.7677288796. The cubic root of 2143020344 is about 1289.2647180904.

Adding to 2143020344 its reverse (4430203412), we get a palindrome (6573223756).

The spelling of 2143020344 in words is "two billion, one hundred forty-three million, twenty thousand, three hundred forty-four".