42040134042 has 8 divisors (see below), whose sum is σ = 84080268096. Its totient is φ = 14013378012.

The previous prime is 42040134041. The next prime is 42040134061. The reversal of 42040134042 is 24043104024.

It is a happy number.

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

42040134042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42040134041) 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 3 ways as a sum of consecutive naturals, for example, 3503344498 + ... + 3503344509.

It is an arithmetic number, because the mean of its divisors is an integer number (10510033512).

Almost surely, 2^42040134042 is an apocalyptic number.

42040134042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42040134042 is a wasteful number, since it uses less digits than its factorization.

42040134042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006689012.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 42040134042 its reverse (24043104024), we get a palindrome (66083238066).

The spelling of 42040134042 in words is "forty-two billion, forty million, one hundred thirty-four thousand, forty-two".