42423403222 has 4 divisors (see below), whose sum is σ = 63635104836. Its totient is φ = 21211701610.

The previous prime is 42423403207. The next prime is 42423403229. The reversal of 42423403222 is 22230432424.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423403229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605850804 + ... + 10605850807.

It is an arithmetic number, because the mean of its divisors is an integer number (15908776209).

Almost surely, 2^42423403222 is an apocalyptic number.

42423403222 is a deficient number, since it is larger than the sum of its proper divisors (21211701614).

42423403222 is a wasteful number, since it uses less digits than its factorization.

42423403222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21211701613.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 42423403222 its reverse (22230432424), we get a palindrome (64653835646).

The spelling of 42423403222 in words is "forty-two billion, four hundred twenty-three million, four hundred three thousand, two hundred twenty-two".