42440122404349 has 2 divisors, whose sum is σ = 42440122404350. Its totient is φ = 42440122404348.

The previous prime is 42440122404269. The next prime is 42440122404371. The reversal of 42440122404349 is 94340422104424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31015431722500 + 11424690681849 = 5569150^2 + 3380043^2 .

It is a cyclic number.

It is not a de Polignac number, because 42440122404349 - 2³⁹ = 41890366590461 is a prime.

It is a super-3 number, since 3×42440122404349³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42440122404389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21220061202174 + 21220061202175.

It is an arithmetic number, because the mean of its divisors is an integer number (21220061202175).

Almost surely, 2^{42440122404349} is an apocalyptic number.

It is an amenable number.

42440122404349 is a deficient number, since it is larger than the sum of its proper divisors (1).

42440122404349 is an equidigital number, since it uses as much as digits as its factorization.

42440122404349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 43.

The spelling of 42440122404349 in words is "forty-two trillion, four hundred forty billion, one hundred twenty-two million, four hundred four thousand, three hundred forty-nine".