42422023442 has 4 divisors (see below), whose sum is σ = 63633035166. Its totient is φ = 21211011720.

The previous prime is 42422023429. The next prime is 42422023471. The reversal of 42422023442 is 24432022424.

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., 38950574881 + 3471448561 = 197359^2 + 58919^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605505859 + ... + 10605505862.

Almost surely, 2^42422023442 is an apocalyptic number.

42422023442 is a deficient number, since it is larger than the sum of its proper divisors (21211011724).

42422023442 is a wasteful number, since it uses less digits than its factorization.

42422023442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21211011723.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 42422023442 its reverse (24432022424), we get a palindrome (66854045866).

The spelling of 42422023442 in words is "forty-two billion, four hundred twenty-two million, twenty-three thousand, four hundred forty-two".