442014123442 has 4 divisors (see below), whose sum is σ = 663021185166. Its totient is φ = 221007061720.

The previous prime is 442014123403. The next prime is 442014123449. The reversal of 442014123442 is 244321410244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 434809678801 + 7204444641 = 659401^2 + 84879^2 .

It is a super-2 number, since 2×442014123442² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (442014123449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110503530859 + ... + 110503530862.

Almost surely, 2^442014123442 is an apocalyptic number.

442014123442 is a deficient number, since it is larger than the sum of its proper divisors (221007061724).

442014123442 is a wasteful number, since it uses less digits than its factorization.

442014123442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221007061723.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 442014123442 its reverse (244321410244), we get a palindrome (686335533686).

The spelling of 442014123442 in words is "four hundred forty-two billion, fourteen million, one hundred twenty-three thousand, four hundred forty-two".