42426022442 has 4 divisors (see below), whose sum is σ = 63639033666. Its totient is φ = 21213011220.

The previous prime is 42426022423. The next prime is 42426022453. The reversal of 42426022442 is 24422062424.

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., 40131708241 + 2294314201 = 200329^2 + 47899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42426022399 and 42426022408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606505609 + ... + 10606505612.

Almost surely, 2^42426022442 is an apocalyptic number.

42426022442 is a deficient number, since it is larger than the sum of its proper divisors (21213011224).

42426022442 is a wasteful number, since it uses less digits than its factorization.

42426022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21213011223.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 42426022442 its reverse (24422062424), we get a palindrome (66848084866).

The spelling of 42426022442 in words is "forty-two billion, four hundred twenty-six million, twenty-two thousand, four hundred forty-two".