40044544002 has 96 divisors (see below), whose sum is σ = 90349623936. Its totient is φ = 12810470400.

The previous prime is 40044543991. The next prime is 40044544037. The reversal of 40044544002 is 20044544004.

It is a happy number.

It is a super-2 number, since 2×40044544002² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8870898 + ... + 8875410.

It is an arithmetic number, because the mean of its divisors is an integer number (941141916).

Almost surely, 2^40044544002 is an apocalyptic number.

40044544002 is an abundant number, since it is smaller than the sum of its proper divisors (50305079934).

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

40044544002 is a wasteful number, since it uses less digits than its factorization.

40044544002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The spelling of 40044544002 in words is "forty billion, forty-four million, five hundred forty-four thousand, two".