40000044040 has 64 divisors (see below), whose sum is σ = 99154134720. Its totient is φ = 14401440000.

The previous prime is 40000044011. The next prime is 40000044043. The reversal of 40000044040 is 4044000004.

It is not an unprimeable number, because it can be changed into a prime (40000044043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405606 + ... + 494485.

It is an arithmetic number, because the mean of its divisors is an integer number (1549283355).

Almost surely, 2^40000044040 is an apocalyptic number.

40000044040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40000044040 is an abundant number, since it is smaller than the sum of its proper divisors (59154090680).

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

40000044040 is a wasteful number, since it uses less digits than its factorization.

40000044040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900214 (or 900210 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40000044040 its reverse (4044000004), we get a palindrome (44044044044).

The spelling of 40000044040 in words is "forty billion, forty-four thousand, forty", and thus it is an eban number.