442044222 has 32 divisors (see below), whose sum is σ = 933666048. Its totient is φ = 139239936.

The previous prime is 442044193. The next prime is 442044223. The reversal of 442044222 is 222440244.

It is a junction number, because it is equal to n+sod(n) for n = 442044192 and 442044201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442044223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7843 + ... + 30750.

It is an arithmetic number, because the mean of its divisors is an integer number (29177064).

Almost surely, 2^442044222 is an apocalyptic number.

442044222 is an abundant number, since it is smaller than the sum of its proper divisors (491621826).

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

442044222 is a wasteful number, since it uses less digits than its factorization.

442044222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38704.

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

The square root of 442044222 is about 21024.8477283428. The cubic root of 442044222 is about 761.7665634724.

Adding to 442044222 its reverse (222440244), we get a palindrome (664484466).

The spelling of 442044222 in words is "four hundred forty-two million, forty-four thousand, two hundred twenty-two".