4002044243 has 4 divisors (see below), whose sum is σ = 4002381888. Its totient is φ = 4001706600.

The previous prime is 4002044213. The next prime is 4002044251. The reversal of 4002044243 is 3424402004.

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

It is a cyclic number.

It is not a de Polignac number, because 4002044243 - 2¹⁴ = 4002027859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002044213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150371 + ... + 174972.

It is an arithmetic number, because the mean of its divisors is an integer number (1000595472).

Almost surely, 2^4002044243 is an apocalyptic number.

4002044243 is a deficient number, since it is larger than the sum of its proper divisors (337645).

4002044243 is a wasteful number, since it uses less digits than its factorization.

4002044243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337644.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 4002044243 is about 63261.7122989886. The cubic root of 4002044243 is about 1587.6714253717.

Adding to 4002044243 its reverse (3424402004), we get a palindrome (7426446247).

The spelling of 4002044243 in words is "four billion, two million, forty-four thousand, two hundred forty-three".