42444400445 has 8 divisors (see below), whose sum is σ = 53147771136. Its totient is φ = 32479193296.

The previous prime is 42444400441. The next prime is 42444400451. The reversal of 42444400445 is 54400444424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42444400445 - 2² = 42444400441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42444400441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184540757 + ... + 184540986.

It is an arithmetic number, because the mean of its divisors is an integer number (6643471392).

Almost surely, 2^42444400445 is an apocalyptic number.

It is an amenable number.

42444400445 is a deficient number, since it is larger than the sum of its proper divisors (10703370691).

42444400445 is a wasteful number, since it uses less digits than its factorization.

42444400445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369081771.

The product of its (nonzero) digits is 163840, while the sum is 35.

Adding to 42444400445 its reverse (54400444424), we get a palindrome (96844844869).

The spelling of 42444400445 in words is "forty-two billion, four hundred forty-four million, four hundred thousand, four hundred forty-five".