442701774349 has 2 divisors, whose sum is σ = 442701774350. Its totient is φ = 442701774348.

The previous prime is 442701774341. The next prime is 442701774401. The reversal of 442701774349 is 943477107244.

It is an a-pointer prime, because the next prime (442701774401) can be obtained adding 442701774349 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260217313225 + 182484461124 = 510115^2 + 427182^2 .

It is a cyclic number.

It is not a de Polignac number, because 442701774349 - 2³ = 442701774341 is a prime.

It is a super-2 number, since 2×442701774349² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442701774296 and 442701774305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442701774341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221350887174 + 221350887175.

It is an arithmetic number, because the mean of its divisors is an integer number (221350887175).

Almost surely, 2^442701774349 is an apocalyptic number.

It is an amenable number.

442701774349 is a deficient number, since it is larger than the sum of its proper divisors (1).

442701774349 is an equidigital number, since it uses as much as digits as its factorization.

442701774349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 442701774349 in words is "four hundred forty-two billion, seven hundred one million, seven hundred seventy-four thousand, three hundred forty-nine".