442522111 has 8 divisors (see below), whose sum is σ = 446050080. Its totient is φ = 439004928.

The previous prime is 442522079. The next prime is 442522127. The reversal of 442522111 is 111225244.

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

It is a cyclic number.

It is not a de Polignac number, because 442522111 - 2⁵ = 442522079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442522411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 92695 + ... + 97351.

It is an arithmetic number, because the mean of its divisors is an integer number (55756260).

Almost surely, 2^442522111 is an apocalyptic number.

442522111 is a deficient number, since it is larger than the sum of its proper divisors (3527969).

442522111 is a wasteful number, since it uses less digits than its factorization.

442522111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393.

The product of its digits is 640, while the sum is 22.

The square root of 442522111 is about 21036.2095207288. The cubic root of 442522111 is about 762.0409770080.

Adding to 442522111 its reverse (111225244), we get a palindrome (553747355).

The spelling of 442522111 in words is "four hundred forty-two million, five hundred twenty-two thousand, one hundred eleven".