4409143 has 2 divisors, whose sum is σ = 4409144. Its totient is φ = 4409142.

The previous prime is 4409113. The next prime is 4409183. The reversal of 4409143 is 3419044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4409143 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4409113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204571 + 2204572.

It is an arithmetic number, because the mean of its divisors is an integer number (2204572).

Almost surely, 2^4409143 is an apocalyptic number.

4409143 is a deficient number, since it is larger than the sum of its proper divisors (1).

4409143 is an equidigital number, since it uses as much as digits as its factorization.

4409143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4409143 is about 2099.7959424668. The cubic root of 4409143 is about 163.9776764181.

Subtracting from 4409143 its reverse (3419044), we obtain a palindrome (990099).

The spelling of 4409143 in words is "four million, four hundred nine thousand, one hundred forty-three".