42444406444 has 24 divisors (see below), whose sum is σ = 81038075328. Its totient is φ = 19291044240.

The previous prime is 42444406399. The next prime is 42444406463. The reversal of 42444406444 is 44460444424.

It is a junction number, because it is equal to n+sod(n) for n = 42444406397 and 42444406406.

It is an unprimeable number.

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, 479607 + ... + 561169.

It is an arithmetic number, because the mean of its divisors is an integer number (3376586472).

Almost surely, 2^42444406444 is an apocalyptic number.

42444406444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42444406444 is a deficient number, since it is larger than the sum of its proper divisors (38593668884).

42444406444 is a wasteful number, since it uses less digits than its factorization.

42444406444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93405 (or 93403 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 40.

The spelling of 42444406444 in words is "forty-two billion, four hundred forty-four million, four hundred six thousand, four hundred forty-four".