40044492672 has 32 divisors (see below), whose sum is σ = 106368184680. Its totient is φ = 13348164096.

The previous prime is 40044492667. The next prime is 40044492689. The reversal of 40044492672 is 27629444004.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×40044492672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 52140883 + ... + 52141650.

Almost surely, 2^40044492672 is an apocalyptic number.

It is an amenable number.

40044492672 is an abundant number, since it is smaller than the sum of its proper divisors (66323692008).

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

40044492672 is a wasteful number, since it uses less digits than its factorization.

40044492672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104282550 (or 104282538 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 40044492672 in words is "forty billion, forty-four million, four hundred ninety-two thousand, six hundred seventy-two".