40444324544 has 28 divisors (see below), whose sum is σ = 86430301104. Its totient is φ = 18666610944.

The previous prime is 40444324537. The next prime is 40444324553. The reversal of 40444324544 is 44542344404.

It is a junction number, because it is equal to n+sod(n) for n = 40444324498 and 40444324507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24304652 + ... + 24306315.

It is an arithmetic number, because the mean of its divisors is an integer number (3086796468).

Almost surely, 2^40444324544 is an apocalyptic number.

It is an amenable number.

40444324544 is an abundant number, since it is smaller than the sum of its proper divisors (45985976560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40444324544 is a wasteful number, since it uses less digits than its factorization.

40444324544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48610992 (or 48610982 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 38.

Adding to 40444324544 its reverse (44542344404), we get a palindrome (84986668948).

The spelling of 40444324544 in words is "forty billion, four hundred forty-four million, three hundred twenty-four thousand, five hundred forty-four".