442444020 has 24 divisors (see below), whose sum is σ = 1238843424. Its totient is φ = 117985056.

The previous prime is 442443983. The next prime is 442444069. The reversal of 442444020 is 20444244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3686974 + ... + 3687093.

It is an arithmetic number, because the mean of its divisors is an integer number (51618476).

Almost surely, 2^442444020 is an apocalyptic number.

It is an amenable number.

442444020 is an abundant number, since it is smaller than the sum of its proper divisors (796399404).

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

442444020 is a wasteful number, since it uses less digits than its factorization.

442444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374079 (or 7374077 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 442444020 is about 21034.3533297318. The cubic root of 442444020 is about 761.9961490839.

Adding to 442444020 its reverse (20444244), we get a palindrome (462888264).

The spelling of 442444020 in words is "four hundred forty-two million, four hundred forty-four thousand, twenty".