442422022442 has 4 divisors (see below), whose sum is σ = 663633033666. Its totient is φ = 221211011220.

The previous prime is 442422022439. The next prime is 442422022447. The reversal of 442422022442 is 244220224244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 355644056881 + 86777965561 = 596359^2 + 294581^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442422022399 and 442422022408.

It is not an unprimeable number, because it can be changed into a prime (442422022447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605505609 + ... + 110605505612.

Almost surely, 2^442422022442 is an apocalyptic number.

442422022442 is a deficient number, since it is larger than the sum of its proper divisors (221211011224).

442422022442 is a wasteful number, since it uses less digits than its factorization.

442422022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221211011223.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 442422022442 its reverse (244220224244), we get a palindrome (686642246686).

The spelling of 442422022442 in words is "four hundred forty-two billion, four hundred twenty-two million, twenty-two thousand, four hundred forty-two".