40400000044 has 6 divisors (see below), whose sum is σ = 70700000084. Its totient is φ = 20200000020.

The previous prime is 40400000033. The next prime is 40400000071. The reversal of 40400000044 is 44000000404.

It is a junction number, because it is equal to n+sod(n) for n = 40399999973 and 40400000027.

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 as a sum of consecutive naturals, namely, 5050000002 + ... + 5050000009.

Almost surely, 2^40400000044 is an apocalyptic number.

It is an amenable number.

40400000044 is a deficient number, since it is larger than the sum of its proper divisors (30300000040).

40400000044 is a wasteful number, since it uses less digits than its factorization.

40400000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100000015 (or 10100000013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40400000044 its reverse (44000000404), we get a palindrome (84400000448).

The spelling of 40400000044 in words is "forty billion, four hundred million, forty-four", and thus it is an aban number.