442020399907 has 2 divisors, whose sum is σ = 442020399908. Its totient is φ = 442020399906.

The previous prime is 442020399893. The next prime is 442020399913. The reversal of 442020399907 is 709993020244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442020399907 - 2¹¹ = 442020397859 is a prime.

It is not a weakly prime, because it can be changed into another prime (442020399937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221010199953 + 221010199954.

It is an arithmetic number, because the mean of its divisors is an integer number (221010199954).

Almost surely, 2^442020399907 is an apocalyptic number.

442020399907 is a deficient number, since it is larger than the sum of its proper divisors (1).

442020399907 is an equidigital number, since it uses as much as digits as its factorization.

442020399907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 442020399907 in words is "four hundred forty-two billion, twenty million, three hundred ninety-nine thousand, nine hundred seven".