40838531044 has 36 divisors (see below), whose sum is σ = 75957831936. Its totient is φ = 19208224384.

The previous prime is 40838531033. The next prime is 40838531047. The reversal of 40838531044 is 44013583804.

It is a junction number, because it is equal to n+sod(n) for n = 40838530988 and 40838531006.

It is not an unprimeable number, because it can be changed into a prime (40838531047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2543289 + ... + 2559295.

It is an arithmetic number, because the mean of its divisors is an integer number (2109939776).

Almost surely, 2^40838531044 is an apocalyptic number.

It is an amenable number.

40838531044 is a deficient number, since it is larger than the sum of its proper divisors (35119300892).

40838531044 is a wasteful number, since it uses less digits than its factorization.

40838531044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18252 (or 18233 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 40838531044 in words is "forty billion, eight hundred thirty-eight million, five hundred thirty-one thousand, forty-four".