442202329 has 2 divisors, whose sum is σ = 442202330. Its totient is φ = 442202328.

The previous prime is 442202311. The next prime is 442202389. The reversal of 442202329 is 923202244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442134729 + 67600 = 21027^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 442202329 - 2⁵ = 442202297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442202297 and 442202306.

It is not a weakly prime, because it can be changed into another prime (442202309) 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, 221101164 + 221101165.

It is an arithmetic number, because the mean of its divisors is an integer number (221101165).

Almost surely, 2^442202329 is an apocalyptic number.

It is an amenable number.

442202329 is a deficient number, since it is larger than the sum of its proper divisors (1).

442202329 is an equidigital number, since it uses as much as digits as its factorization.

442202329 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 442202329 is about 21028.6073956408. The cubic root of 442202329 is about 761.8573735946.

The spelling of 442202329 in words is "four hundred forty-two million, two hundred two thousand, three hundred twenty-nine".