442222004 has 12 divisors (see below), whose sum is σ = 884444064. Its totient is φ = 189523704.

The previous prime is 442221977. The next prime is 442222021. The reversal of 442222004 is 400222244.

442222004 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896794 + ... + 7896849.

It is an arithmetic number, because the mean of its divisors is an integer number (73703672).

Almost surely, 2^442222004 is an apocalyptic number.

It is an amenable number.

442222004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

442222004 is a wasteful number, since it uses less digits than its factorization.

442222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15793654 (or 15793652 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 442222004 is about 21029.0752055339. The cubic root of 442222004 is about 761.8686725865.

Adding to 442222004 its reverse (400222244), we get a palindrome (842444248).

The spelling of 442222004 in words is "four hundred forty-two million, two hundred twenty-two thousand, four".