442211422 has 8 divisors (see below), whose sum is σ = 665581896. Its totient is φ = 220350792.

The previous prime is 442211411. The next prime is 442211449. The reversal of 442211422 is 224112244.

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 = 442211393 and 442211402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376728 + ... + 377899.

It is an arithmetic number, because the mean of its divisors is an integer number (83197737).

Almost surely, 2^442211422 is an apocalyptic number.

442211422 is a deficient number, since it is larger than the sum of its proper divisors (223370474).

442211422 is a wasteful number, since it uses less digits than its factorization.

442211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754922.

The product of its digits is 1024, while the sum is 22.

The square root of 442211422 is about 21028.8236000020. The cubic root of 442211422 is about 761.8625955795.

Adding to 442211422 its reverse (224112244), we get a palindrome (666323666).

The spelling of 442211422 in words is "four hundred forty-two million, two hundred eleven thousand, four hundred twenty-two".