42042440440444 has 6 divisors (see below), whose sum is σ = 73574270770784. Its totient is φ = 21021220220220.

The previous prime is 42042440440421. The next prime is 42042440440453. The reversal of 42042440440444 is 44404404424024.

It is a junction number, because it is equal to n+sod(n) for n = 42042440440397 and 42042440440406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255305055052 + ... + 5255305055059.

Almost surely, 2^{42042440440444} is an apocalyptic number.

It is an amenable number.

42042440440444 is a deficient number, since it is larger than the sum of its proper divisors (31531830330340).

42042440440444 is a wasteful number, since it uses less digits than its factorization.

42042440440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510610110115 (or 10510610110113 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 42042440440444 its reverse (44404404424024), we get a palindrome (86446844864468).

The spelling of 42042440440444 in words is "forty-two trillion, forty-two billion, four hundred forty million, four hundred forty thousand, four hundred forty-four".