442344230329 has 2 divisors, whose sum is σ = 442344230330. Its totient is φ = 442344230328.

The previous prime is 442344230303. The next prime is 442344230369. The reversal of 442344230329 is 923032443244.

It is an a-pointer prime, because the next prime (442344230369) can be obtained adding 442344230329 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359370275625 + 82973954704 = 599475^2 + 288052^2 .

It is a cyclic number.

It is not a de Polignac number, because 442344230329 - 2²³ = 442335841721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442344230291 and 442344230300.

It is not a weakly prime, because it can be changed into another prime (442344230369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221172115164 + 221172115165.

It is an arithmetic number, because the mean of its divisors is an integer number (221172115165).

Almost surely, 2^442344230329 is an apocalyptic number.

It is an amenable number.

442344230329 is a deficient number, since it is larger than the sum of its proper divisors (1).

442344230329 is an equidigital number, since it uses as much as digits as its factorization.

442344230329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 442344230329 in words is "four hundred forty-two billion, three hundred forty-four million, two hundred thirty thousand, three hundred twenty-nine".