442632404 has 12 divisors (see below), whose sum is σ = 776227200. Its totient is φ = 220853208.

The previous prime is 442632403. The next prime is 442632439. The reversal of 442632404 is 404236244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442632403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113594 + ... + 117425.

It is an arithmetic number, because the mean of its divisors is an integer number (64685600).

Almost surely, 2^442632404 is an apocalyptic number.

It is an amenable number.

442632404 is a deficient number, since it is larger than the sum of its proper divisors (333594796).

442632404 is a wasteful number, since it uses less digits than its factorization.

442632404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231502 (or 231500 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 442632404 is about 21038.8308610531. The cubic root of 442632404 is about 762.1042814183.

Adding to 442632404 its reverse (404236244), we get a palindrome (846868648).

The spelling of 442632404 in words is "four hundred forty-two million, six hundred thirty-two thousand, four hundred four".