2143204424 has 16 divisors (see below), whose sum is σ = 4021674300. Its totient is φ = 1070757952.

The previous prime is 2143204421. The next prime is 2143204477. The reversal of 2143204424 is 4244023412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1718102500 + 425101924 = 41450^2 + 20618^2 .

It is a super-3 number, since 3×2143204424³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2143204393 and 2143204402.

It is not an unprimeable number, because it can be changed into a prime (2143204421) 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 3 ways as a sum of consecutive naturals, for example, 94679 + ... + 115110.

Almost surely, 2^2143204424 is an apocalyptic number.

It is an amenable number.

2143204424 is a deficient number, since it is larger than the sum of its proper divisors (1878469876).

2143204424 is a wasteful number, since it uses less digits than its factorization.

2143204424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211072 (or 211068 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 2143204424 is about 46294.7559017217. The cubic root of 2143204424 is about 1289.3016318875.

Adding to 2143204424 its reverse (4244023412), we get a palindrome (6387227836).

The spelling of 2143204424 in words is "two billion, one hundred forty-three million, two hundred four thousand, four hundred twenty-four".