42440012042 has 16 divisors (see below), whose sum is σ = 64756709280. Its totient is φ = 20854639152.

The previous prime is 42440012003. The next prime is 42440012047. The reversal of 42440012042 is 24021004424.

It is a junction number, because it is equal to n+sod(n) for n = 42440011999 and 42440012017.

It is not an unprimeable number, because it can be changed into a prime (42440012047) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 401468 + ... + 496040.

It is an arithmetic number, because the mean of its divisors is an integer number (4047294330).

Almost surely, 2^42440012042 is an apocalyptic number.

42440012042 is a deficient number, since it is larger than the sum of its proper divisors (22316697238).

42440012042 is a wasteful number, since it uses less digits than its factorization.

42440012042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98437.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 42440012042 its reverse (24021004424), we get a palindrome (66461016466).

The spelling of 42440012042 in words is "forty-two billion, four hundred forty million, twelve thousand, forty-two".