442106441 has 4 divisors (see below), whose sum is σ = 505264512. Its totient is φ = 378948372.

The previous prime is 442106429. The next prime is 442106449. The reversal of 442106441 is 144601244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442106441 - 2¹⁴ = 442090057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442106441.

It is not an unprimeable number, because it can be changed into a prime (442106449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31579025 + ... + 31579038.

It is an arithmetic number, because the mean of its divisors is an integer number (126316128).

Almost surely, 2^442106441 is an apocalyptic number.

It is an amenable number.

442106441 is a deficient number, since it is larger than the sum of its proper divisors (63158071).

442106441 is an equidigital number, since it uses as much as digits as its factorization.

442106441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63158070.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 442106441 is about 21026.3273302781. The cubic root of 442106441 is about 761.8023020764.

Adding to 442106441 its reverse (144601244), we get a palindrome (586707685).

The spelling of 442106441 in words is "four hundred forty-two million, one hundred six thousand, four hundred forty-one".