442244422 has 16 divisors (see below), whose sum is σ = 679844880. Its totient is φ = 215645472.

The previous prime is 442244393. The next prime is 442244423. The reversal of 442244422 is 224442244.

It is a super-2 number, since 2×442244422² = 391160257580228168, which contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442244423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57348 + ... + 64600.

It is an arithmetic number, because the mean of its divisors is an integer number (42490305).

Almost surely, 2^442244422 is an apocalyptic number.

442244422 is a deficient number, since it is larger than the sum of its proper divisors (237600458).

442244422 is a wasteful number, since it uses less digits than its factorization.

442244422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007.

The product of its digits is 16384, while the sum is 28.

The square root of 442244422 is about 21029.6082226940. The cubic root of 442244422 is about 761.8815464244.

Adding to 442244422 its reverse (224442244), we get a palindrome (666686666).

The spelling of 442244422 in words is "four hundred forty-two million, two hundred forty-four thousand, four hundred twenty-two".