40440044440 has 32 divisors (see below), whose sum is σ = 91000242000. Its totient is φ = 16174214784.

The previous prime is 40440044383. The next prime is 40440044443. The reversal of 40440044440 is 4444004404.

It is a junction number, because it is equal to n+sod(n) for n = 40440044399 and 40440044408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440044443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 341731 + ... + 444589.

Almost surely, 2^40440044440 is an apocalyptic number.

40440044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40440044440 is an abundant number, since it is smaller than the sum of its proper divisors (50560197560).

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

40440044440 is a wasteful number, since it uses less digits than its factorization.

40440044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112699 (or 112695 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40440044440 its reverse (4444004404), we get a palindrome (44884048844).

The spelling of 40440044440 in words is "forty billion, four hundred forty million, forty-four thousand, four hundred forty".