442522232 has 8 divisors (see below), whose sum is σ = 829729200. Its totient is φ = 221261112.

The previous prime is 442522187. The next prime is 442522237. The reversal of 442522232 is 232225244.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442522237) 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 as a sum of consecutive naturals, namely, 27657632 + ... + 27657647.

It is an arithmetic number, because the mean of its divisors is an integer number (103716150).

Almost surely, 2^442522232 is an apocalyptic number.

It is an amenable number.

442522232 is a deficient number, since it is larger than the sum of its proper divisors (387206968).

442522232 is a wasteful number, since it uses less digits than its factorization.

442522232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55315285 (or 55315281 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 442522232 is about 21036.2123967220. The cubic root of 442522232 is about 762.0410464636.

Adding to 442522232 its reverse (232225244), we get a palindrome (674747476).

The spelling of 442522232 in words is "four hundred forty-two million, five hundred twenty-two thousand, two hundred thirty-two".