442632444 has 24 divisors (see below), whose sum is σ = 1034087040. Its totient is φ = 147361584.

The previous prime is 442632439. The next prime is 442632467. The reversal of 442632444 is 444236244.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12534 + ... + 32285.

It is an arithmetic number, because the mean of its divisors is an integer number (43086960).

Almost surely, 2^442632444 is an apocalyptic number.

It is an amenable number.

442632444 is an abundant number, since it is smaller than the sum of its proper divisors (591454596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442632444 is a wasteful number, since it uses less digits than its factorization.

442632444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45649 (or 45647 counting only the distinct ones).

The product of its digits is 73728, while the sum is 33.

The square root of 442632444 is about 21038.8318116762. The cubic root of 442632444 is about 762.1043043750.

Adding to 442632444 its reverse (444236244), we get a palindrome (886868688).

The spelling of 442632444 in words is "four hundred forty-two million, six hundred thirty-two thousand, four hundred forty-four".