442484243 has 2 divisors, whose sum is σ = 442484244. Its totient is φ = 442484242.

The previous prime is 442484239. The next prime is 442484249. The reversal of 442484243 is 342484244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442484243 - 2² = 442484239 is a prime.

It is not a weakly prime, because it can be changed into another prime (442484249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221242121 + 221242122.

It is an arithmetic number, because the mean of its divisors is an integer number (221242122).

Almost surely, 2^442484243 is an apocalyptic number.

442484243 is a deficient number, since it is larger than the sum of its proper divisors (1).

442484243 is an equidigital number, since it uses as much as digits as its factorization.

442484243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98304, while the sum is 35.

The square root of 442484243 is about 21035.3094343772. The cubic root of 442484243 is about 762.0192396453.

Subtracting from 442484243 its reverse (342484244), we obtain a palindrome (99999999).

The spelling of 442484243 in words is "four hundred forty-two million, four hundred eighty-four thousand, two hundred forty-three".