40044000040 has 64 divisors (see below), whose sum is σ = 102563314560. Its totient is φ = 13928344320.

The previous prime is 40044000019. The next prime is 40044000043. The reversal of 40044000040 is 4000044004.

40044000040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40043999978 and 40044000023.

It is not an unprimeable number, because it can be changed into a prime (40044000043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1968339 + ... + 1988578.

It is an arithmetic number, because the mean of its divisors is an integer number (1602551790).

Almost surely, 2^40044000040 is an apocalyptic number.

40044000040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40044000040 is an abundant number, since it is smaller than the sum of its proper divisors (62519314520).

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

40044000040 is a wasteful number, since it uses less digits than its factorization.

40044000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956962 (or 3956958 counting only the distinct ones).

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

Adding to 40044000040 its reverse (4000044004), we get a palindrome (44044044044).

The spelling of 40044000040 in words is "forty billion, forty-four million, forty", and thus it is an aban number and an eban number.