442400011 has 2 divisors, whose sum is σ = 442400012. Its totient is φ = 442400010.

The previous prime is 442399987. The next prime is 442400041. The reversal of 442400011 is 110004244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442400011 - 2¹³ = 442391819 is a prime.

It is not a weakly prime, because it can be changed into another prime (442400041) 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, 221200005 + 221200006.

It is an arithmetic number, because the mean of its divisors is an integer number (221200006).

Almost surely, 2^442400011 is an apocalyptic number.

442400011 is a deficient number, since it is larger than the sum of its proper divisors (1).

442400011 is an equidigital number, since it uses as much as digits as its factorization.

442400011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 442400011 is about 21033.3071817059. The cubic root of 442400011 is about 761.9708835144.

Adding to 442400011 its reverse (110004244), we get a palindrome (552404255).

The spelling of 442400011 in words is "four hundred forty-two million, four hundred thousand, eleven".