442444043 has 4 divisors (see below), whose sum is σ = 445374288. Its totient is φ = 439513800.

The previous prime is 442443983. The next prime is 442444069. The reversal of 442444043 is 340444244.

It is a happy number.

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 442444043 - 2⁶ = 442443979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442443997 and 442444015.

It is not an unprimeable number, because it can be changed into a prime (442447043) 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, 1464896 + ... + 1465197.

It is an arithmetic number, because the mean of its divisors is an integer number (111343572).

Almost surely, 2^442444043 is an apocalyptic number.

442444043 is a deficient number, since it is larger than the sum of its proper divisors (2930245).

442444043 is a wasteful number, since it uses less digits than its factorization.

442444043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930244.

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

The square root of 442444043 is about 21034.3538764565. The cubic root of 442444043 is about 761.9961622878.

Adding to 442444043 its reverse (340444244), we get a palindrome (782888287).

The spelling of 442444043 in words is "four hundred forty-two million, four hundred forty-four thousand, forty-three".