442953073 has 2 divisors, whose sum is σ = 442953074. Its totient is φ = 442953072.

The previous prime is 442953059. The next prime is 442953083. The reversal of 442953073 is 370359244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232471009 + 210482064 = 15247^2 + 14508^2 .

It is a cyclic number.

It is not a de Polignac number, because 442953073 - 2⁵ = 442953041 is a prime.

It is not a weakly prime, because it can be changed into another prime (442953083) 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, 221476536 + 221476537.

It is an arithmetic number, because the mean of its divisors is an integer number (221476537).

Almost surely, 2^442953073 is an apocalyptic number.

It is an amenable number.

442953073 is a deficient number, since it is larger than the sum of its proper divisors (1).

442953073 is an equidigital number, since it uses as much as digits as its factorization.

442953073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 442953073 is about 21046.4503657980. The cubic root of 442953073 is about 762.2882747456.

The spelling of 442953073 in words is "four hundred forty-two million, nine hundred fifty-three thousand, seventy-three".