442321022 has 32 divisors (see below), whose sum is σ = 780845184. Its totient is φ = 185263200.

The previous prime is 442321013. The next prime is 442321049. The reversal of 442321022 is 220123244.

It is a junction number, because it is equal to n+sod(n) for n = 442320985 and 442321003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230993 + ... + 232899.

It is an arithmetic number, because the mean of its divisors is an integer number (24401412).

Almost surely, 2^442321022 is an apocalyptic number.

442321022 is a deficient number, since it is larger than the sum of its proper divisors (338524162).

442321022 is a wasteful number, since it uses less digits than its factorization.

442321022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 442321022 is about 21031.4293855648. The cubic root of 442321022 is about 761.9255317219.

Adding to 442321022 its reverse (220123244), we get a palindrome (662444266).

It can be divided in two parts, 44232 and 1022, that added together give a palindrome (45254).

The spelling of 442321022 in words is "four hundred forty-two million, three hundred twenty-one thousand, twenty-two".