40400331044 has 6 divisors (see below), whose sum is σ = 70700579334. Its totient is φ = 20200165520.

The previous prime is 40400331029. The next prime is 40400331109. The reversal of 40400331044 is 44013300404.

It can be written as a sum of positive squares in only one way, i.e., 32928457444 + 7471873600 = 181462^2 + 86440^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050041377 + ... + 5050041384.

It is an arithmetic number, because the mean of its divisors is an integer number (11783429889).

Almost surely, 2^40400331044 is an apocalyptic number.

It is an amenable number.

40400331044 is a deficient number, since it is larger than the sum of its proper divisors (30300248290).

40400331044 is a wasteful number, since it uses less digits than its factorization.

40400331044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100082765 (or 10100082763 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40400331044 its reverse (44013300404), we get a palindrome (84413631448).

The spelling of 40400331044 in words is "forty billion, four hundred million, three hundred thirty-one thousand, forty-four".