42144220442 has 16 divisors (see below), whose sum is σ = 65264838912. Its totient is φ = 20389467360.

The previous prime is 42144220387. The next prime is 42144220471. The reversal of 42144220442 is 24402244124.

It is a happy number.

It is a super-2 number, since 2×42144220442² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429398 + ... + 518334.

It is an arithmetic number, because the mean of its divisors is an integer number (4079052432).

Almost surely, 2^42144220442 is an apocalyptic number.

42144220442 is a deficient number, since it is larger than the sum of its proper divisors (23120618470).

42144220442 is a wasteful number, since it uses less digits than its factorization.

42144220442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96613.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 42144220442 its reverse (24402244124), we get a palindrome (66546464566).

The spelling of 42144220442 in words is "forty-two billion, one hundred forty-four million, two hundred twenty thousand, four hundred forty-two".