40438007044 has 12 divisors (see below), whose sum is σ = 73206737100. Its totient is φ = 19521796448.

The previous prime is 40438007041. The next prime is 40438007081. The reversal of 40438007044 is 44070083404.

It can be written as a sum of positive squares in 2 ways, for example, as 26487562500 + 13950444544 = 162750^2 + 118112^2 .

It is not an unprimeable number, because it can be changed into a prime (40438007041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 174301639 + ... + 174301870.

It is an arithmetic number, because the mean of its divisors is an integer number (6100561425).

Almost surely, 2^40438007044 is an apocalyptic number.

It is an amenable number.

40438007044 is a deficient number, since it is larger than the sum of its proper divisors (32768730056).

40438007044 is a wasteful number, since it uses less digits than its factorization.

40438007044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348603542 (or 348603540 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 34.

The spelling of 40438007044 in words is "forty billion, four hundred thirty-eight million, seven thousand, forty-four".