4440242143 has 4 divisors (see below), whose sum is σ = 4446016960. Its totient is φ = 4434467328.

The previous prime is 4440242137. The next prime is 4440242153. The reversal of 4440242143 is 3412420444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4440242143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440242153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2886255 + ... + 2887792.

It is an arithmetic number, because the mean of its divisors is an integer number (1111504240).

Almost surely, 2^4440242143 is an apocalyptic number.

4440242143 is a deficient number, since it is larger than the sum of its proper divisors (5774817).

4440242143 is an equidigital number, since it uses as much as digits as its factorization.

4440242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774816.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4440242143 is about 66635.1419522762. The cubic root of 4440242143 is about 1643.6230311543.

Adding to 4440242143 its reverse (3412420444), we get a palindrome (7852662587).

The spelling of 4440242143 in words is "four billion, four hundred forty million, two hundred forty-two thousand, one hundred forty-three".