42442020422 has 8 divisors (see below), whose sum is σ = 63669805056. Its totient is φ = 21218752072.

The previous prime is 42442020403. The next prime is 42442020427. The reversal of 42442020422 is 22402024424.

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

It is a junction number, because it is equal to n+sod(n) for n = 42442020391 and 42442020400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442020427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105478 + ... + 1143225.

It is an arithmetic number, because the mean of its divisors is an integer number (7958725632).

Almost surely, 2^42442020422 is an apocalyptic number.

42442020422 is a deficient number, since it is larger than the sum of its proper divisors (21227784634).

42442020422 is a wasteful number, since it uses less digits than its factorization.

42442020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258142.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 42442020422 its reverse (22402024424), we get a palindrome (64844044846).

The spelling of 42442020422 in words is "forty-two billion, four hundred forty-two million, twenty thousand, four hundred twenty-two".