442332422 has 8 divisors (see below), whose sum is σ = 758284176. Its totient is φ = 189571032.

The previous prime is 442332421. The next prime is 442332467. The reversal of 442332422 is 224233244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 442332391 and 442332400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442332421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15797573 + ... + 15797600.

It is an arithmetic number, because the mean of its divisors is an integer number (94785522).

Almost surely, 2^442332422 is an apocalyptic number.

442332422 is a deficient number, since it is larger than the sum of its proper divisors (315951754).

442332422 is a wasteful number, since it uses less digits than its factorization.

442332422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31595182.

The product of its digits is 9216, while the sum is 26.

The square root of 442332422 is about 21031.7004067669. The cubic root of 442332422 is about 761.9320774025.

Adding to 442332422 its reverse (224233244), we get a palindrome (666565666).

It can be divided in two parts, 44233242 and 2, that added together give a palindrome (44233244).

The spelling of 442332422 in words is "four hundred forty-two million, three hundred thirty-two thousand, four hundred twenty-two".