42004022440042 has 16 divisors (see below), whose sum is σ = 70192398243240. Its totient is φ = 18717972864192.

The previous prime is 42004022440031. The next prime is 42004022440043. The reversal of 42004022440042 is 24004422040024.

It can be written as a sum of positive squares in 4 ways, for example, as 38164730973121 + 3839291466921 = 6177761^2 + 1959411^2 .

It is a super-2 number, since 2×42004022440042² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42004022440043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27854125533 + ... + 27854127040.

Almost surely, 2^{42004022440042} is an apocalyptic number.

42004022440042 is a deficient number, since it is larger than the sum of its proper divisors (28188375803198).

42004022440042 is a wasteful number, since it uses less digits than its factorization.

42004022440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55708252617.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42004022440042 its reverse (24004422040024), we get a palindrome (66008444480066).

The spelling of 42004022440042 in words is "forty-two trillion, four billion, twenty-two million, four hundred forty thousand, forty-two".