40044004512 has 48 divisors (see below), whose sum is σ = 107352024192. Its totient is φ = 13064000000.

The previous prime is 40044004501. The next prime is 40044004589. The reversal of 40044004512 is 21540044004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432989 + ... + 4442012.

It is an arithmetic number, because the mean of its divisors is an integer number (2236500504).

Almost surely, 2^40044004512 is an apocalyptic number.

It is an amenable number.

40044004512 is an abundant number, since it is smaller than the sum of its proper divisors (67308019680).

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

40044004512 is a wasteful number, since it uses less digits than its factorization.

40044004512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875061 (or 8875053 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 40044004512 its reverse (21540044004), we get a palindrome (61584048516).

The spelling of 40044004512 in words is "forty billion, forty-four million, four thousand, five hundred twelve".