4142443 has 4 divisors (see below), whose sum is σ = 4148280. Its totient is φ = 4136608.

The previous prime is 4142429. The next prime is 4142473. The reversal of 4142443 is 3442414.

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-4142443 is a prime.

It is a Duffinian number.

4142443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4142423) 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, 1678 + ... + 3331.

It is an arithmetic number, because the mean of its divisors is an integer number (1037070).

Almost surely, 2^4142443 is an apocalyptic number.

4142443 is a deficient number, since it is larger than the sum of its proper divisors (5837).

4142443 is an equidigital number, since it uses as much as digits as its factorization.

4142443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836.

The product of its digits is 1536, while the sum is 22.

The square root of 4142443 is about 2035.2992408980. The cubic root of 4142443 is about 160.6024552632.

Adding to 4142443 its reverse (3442414), we get a palindrome (7584857).

The spelling of 4142443 in words is "four million, one hundred forty-two thousand, four hundred forty-three".