442514213 has 2 divisors, whose sum is σ = 442514214. Its totient is φ = 442514212.

The previous prime is 442514207. The next prime is 442514221. The reversal of 442514213 is 312415244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372991969 + 69522244 = 19313^2 + 8338^2 .

It is a cyclic number.

It is not a de Polignac number, because 442514213 - 2⁴ = 442514197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442519213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221257106 + 221257107.

It is an arithmetic number, because the mean of its divisors is an integer number (221257107).

Almost surely, 2^442514213 is an apocalyptic number.

It is an amenable number.

442514213 is a deficient number, since it is larger than the sum of its proper divisors (1).

442514213 is an equidigital number, since it uses as much as digits as its factorization.

442514213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 26.

The square root of 442514213 is about 21036.0217959575. The cubic root of 442514213 is about 762.0364434225.

Adding to 442514213 its reverse (312415244), we get a palindrome (754929457).

The spelling of 442514213 in words is "four hundred forty-two million, five hundred fourteen thousand, two hundred thirteen".