442382747 has 2 divisors, whose sum is σ = 442382748. Its totient is φ = 442382746.

The previous prime is 442382711. The next prime is 442382749. The reversal of 442382747 is 747283244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442382747 is a prime.

Together with 442382749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442382749) 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 as a sum of consecutive naturals, namely, 221191373 + 221191374.

It is an arithmetic number, because the mean of its divisors is an integer number (221191374).

Almost surely, 2^442382747 is an apocalyptic number.

442382747 is a deficient number, since it is larger than the sum of its proper divisors (1).

442382747 is an equidigital number, since it uses as much as digits as its factorization.

442382747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 41.

The square root of 442382747 is about 21032.8967809952. The cubic root of 442382747 is about 761.9609717934.

The spelling of 442382747 in words is "four hundred forty-two million, three hundred eighty-two thousand, seven hundred forty-seven".