442105355305 has 8 divisors (see below), whose sum is σ = 533593054152. Its totient is φ = 351639865728.

The previous prime is 442105355303. The next prime is 442105355389. The reversal of 442105355305 is 503553501244.

It can be written as a sum of positive squares in 4 ways, for example, as 21686685696 + 420418669609 = 147264^2 + 648397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442105355305 - 2¹ = 442105355303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442105355303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255551364 + ... + 255553093.

It is an arithmetic number, because the mean of its divisors is an integer number (66699131769).

Almost surely, 2^442105355305 is an apocalyptic number.

It is an amenable number.

442105355305 is a deficient number, since it is larger than the sum of its proper divisors (91487698847).

442105355305 is a wasteful number, since it uses less digits than its factorization.

442105355305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511104635.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 442105355305 its reverse (503553501244), we get a palindrome (945658856549).

The spelling of 442105355305 in words is "four hundred forty-two billion, one hundred five million, three hundred fifty-five thousand, three hundred five".