442662013 has 2 divisors, whose sum is σ = 442662014. Its totient is φ = 442662012.

The previous prime is 442661993. The next prime is 442662029. The reversal of 442662013 is 310266244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343101529 + 99560484 = 18523^2 + 9978^2 .

It is a cyclic number.

It is not a de Polignac number, because 442662013 - 2¹⁷ = 442530941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442662083) 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, 221331006 + 221331007.

It is an arithmetic number, because the mean of its divisors is an integer number (221331007).

Almost surely, 2^442662013 is an apocalyptic number.

It is an amenable number.

442662013 is a deficient number, since it is larger than the sum of its proper divisors (1).

442662013 is an equidigital number, since it uses as much as digits as its factorization.

442662013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 442662013 is about 21039.5345243187. The cubic root of 442662013 is about 762.1212741812.

The spelling of 442662013 in words is "four hundred forty-two million, six hundred sixty-two thousand, thirteen".