442642244 has 48 divisors (see below), whose sum is σ = 860461056. Its totient is φ = 197568000.

The previous prime is 442642229. The next prime is 442642247. The reversal of 442642244 is 442246244.

It is a self number, because there is not a number n which added to its sum of digits gives 442642244.

It is not an unprimeable number, because it can be changed into a prime (442642247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631094 + ... + 631794.

It is an arithmetic number, because the mean of its divisors is an integer number (17926272).

Almost surely, 2^442642244 is an apocalyptic number.

442642244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442642244 is a deficient number, since it is larger than the sum of its proper divisors (417818812).

442642244 is a wasteful number, since it uses less digits than its factorization.

442642244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its digits is 49152, while the sum is 32.

The square root of 442642244 is about 21039.0647130522. The cubic root of 442642244 is about 762.1099287308.

Adding to 442642244 its reverse (442246244), we get a palindrome (884888488).

The spelling of 442642244 in words is "four hundred forty-two million, six hundred forty-two thousand, two hundred forty-four".