42440444420404 has 48 divisors (see below), whose sum is σ = 79601676947856. Its totient is φ = 19728562176000.

The previous prime is 42440444420359. The next prime is 42440444420449. The reversal of 42440444420404 is 40402444404424.

42440444420404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42440444420359) and next prime (42440444420449).

It can be written as a sum of positive squares in 8 ways, for example, as 299703692304 + 42140740728100 = 547452^2 + 6491590^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4161777 + ... + 10109464.

It is an arithmetic number, because the mean of its divisors is an integer number (1658368269747).

Almost surely, 2^{42440444420404} is an apocalyptic number.

It is an amenable number.

42440444420404 is a deficient number, since it is larger than the sum of its proper divisors (37161232527452).

42440444420404 is a wasteful number, since it uses less digits than its factorization.

42440444420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14271796 (or 14271794 counting only the distinct ones).

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

Adding to 42440444420404 its reverse (40402444404424), we get a palindrome (82842888824828).

The spelling of 42440444420404 in words is "forty-two trillion, four hundred forty billion, four hundred forty-four million, four hundred twenty thousand, four hundred four".