4004444243 has 4 divisors (see below), whose sum is σ = 4004570808. Its totient is φ = 4004317680.

The previous prime is 4004444221. The next prime is 4004444317. The reversal of 4004444243 is 3424444004.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4004444243 - 2⁶ = 4004444179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4004494243) 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, 31028 + ... + 94718.

It is an arithmetic number, because the mean of its divisors is an integer number (1001142702).

Almost surely, 2^4004444243 is an apocalyptic number.

4004444243 is a deficient number, since it is larger than the sum of its proper divisors (126565).

4004444243 is an equidigital number, since it uses as much as digits as its factorization.

4004444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126564.

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 4004444243 is about 63280.6782754420. The cubic root of 4004444243 is about 1587.9887340395.

Adding to 4004444243 its reverse (3424444004), we get a palindrome (7428888247).

The spelling of 4004444243 in words is "four billion, four million, four hundred forty-four thousand, two hundred forty-three".