2143424 has 28 divisors (see below), whose sum is σ = 4306824. Its totient is φ = 1058304.

The previous prime is 2143417. The next prime is 2143441. The reversal of 2143424 is 4243412.

It is a junction number, because it is equal to n+sod(n) for n = 2143396 and 2143405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6692 + ... + 7004.

2^2143424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2153412).

2143424 is an abundant number, since it is smaller than the sum of its proper divisors (2163400).

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

2143424 is a wasteful number, since it uses less digits than its factorization.

2143424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 422 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 2143424 is about 1464.0437151943. The cubic root of 2143424 is about 128.9345660978.

Adding to 2143424 its reverse (4243412), we get a palindrome (6386836).

It can be divided in two parts, 214 and 3424, that multiplied together give a square (732736 = 856²).

The spelling of 2143424 in words is "two million, one hundred forty-three thousand, four hundred twenty-four".