42440404444 has 12 divisors (see below), whose sum is σ = 75672042264. Its totient is φ = 20819820944.

The previous prime is 42440404441. The next prime is 42440404529. The reversal of 42440404444 is 44440404424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440404441) 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 3 ways as a sum of consecutive naturals, for example, 100095082 + ... + 100095505.

It is an arithmetic number, because the mean of its divisors is an integer number (6306003522).

Almost surely, 2^42440404444 is an apocalyptic number.

It is an amenable number.

42440404444 is a deficient number, since it is larger than the sum of its proper divisors (33231637820).

42440404444 is a wasteful number, since it uses less digits than its factorization.

42440404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200190644 (or 200190642 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 42440404444 its reverse (44440404424), we get a palindrome (86880808868).

The spelling of 42440404444 in words is "forty-two billion, four hundred forty million, four hundred four thousand, four hundred forty-four".