42442446442 has 32 divisors (see below), whose sum is σ = 70412773824. Its totient is φ = 19026432000.

The previous prime is 42442446427. The next prime is 42442446443. The reversal of 42442446442 is 24464424424.

It is a super-2 number, since 2×42442446442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42442446395 and 42442446404.

It is not an unprimeable number, because it can be changed into a prime (42442446443) 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 15 ways as a sum of consecutive naturals, for example, 533893 + ... + 608215.

It is an arithmetic number, because the mean of its divisors is an integer number (2200399182).

Almost surely, 2^42442446442 is an apocalyptic number.

42442446442 is a deficient number, since it is larger than the sum of its proper divisors (27970327382).

42442446442 is a wasteful number, since it uses less digits than its factorization.

42442446442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74694.

The product of its digits is 786432, while the sum is 40.

It can be divided in two parts, 42442 and 446442, that added together give a palindrome (488884).

The spelling of 42442446442 in words is "forty-two billion, four hundred forty-two million, four hundred forty-six thousand, four hundred forty-two".