4001443 has 8 divisors (see below), whose sum is σ = 4276368. Its totient is φ = 3730944.

The previous prime is 4001411. The next prime is 4001453. The reversal of 4001443 is 3441004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4001443 - 2⁵ = 4001411 is a prime.

It is a Duffinian number.

4001443 is a modest number, since divided by 1443 gives 4 as remainder.

It is not an unprimeable number, because it can be changed into a prime (4001453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880 + ... + 2962.

It is an arithmetic number, because the mean of its divisors is an integer number (534546).

Almost surely, 2^4001443 is an apocalyptic number.

4001443 is a deficient number, since it is larger than the sum of its proper divisors (274925).

4001443 is a wasteful number, since it uses less digits than its factorization.

4001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4001443 is about 2000.3607174707. The cubic root of 4001443 is about 158.7591913995.

Adding to 4001443 its reverse (3441004), we get a palindrome (7442447).

It can be divided in two parts, 4001 and 443, that added together give a palindrome (4444).

The spelling of 4001443 in words is "four million, one thousand, four hundred forty-three".