442100441 has 2 divisors, whose sum is σ = 442100442. Its totient is φ = 442100440.

The previous prime is 442100381. The next prime is 442100473. The reversal of 442100441 is 144001244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234855625 + 207244816 = 15325^2 + 14396^2 .

It is a cyclic number.

It is not a de Polignac number, because 442100441 - 2¹⁴ = 442084057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442105441) 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 as a sum of consecutive naturals, namely, 221050220 + 221050221.

It is an arithmetic number, because the mean of its divisors is an integer number (221050221).

Almost surely, 2^442100441 is an apocalyptic number.

It is an amenable number.

442100441 is a deficient number, since it is larger than the sum of its proper divisors (1).

442100441 is an equidigital number, since it uses as much as digits as its factorization.

442100441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 442100441 is about 21026.1846515244. The cubic root of 442100441 is about 761.7988558215.

Adding to 442100441 its reverse (144001244), we get a palindrome (586101685).

The spelling of 442100441 in words is "four hundred forty-two million, one hundred thousand, four hundred forty-one".