40400444404 has 6 divisors (see below), whose sum is σ = 70700777714. Its totient is φ = 20200222200.

The previous prime is 40400444351. The next prime is 40400444437. The reversal of 40400444404 is 40444400404.

It can be written as a sum of positive squares in only one way, i.e., 32119808400 + 8280636004 = 179220^2 + 90998^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050055547 + ... + 5050055554.

Almost surely, 2^40400444404 is an apocalyptic number.

It is an amenable number.

40400444404 is a deficient number, since it is larger than the sum of its proper divisors (30300333310).

40400444404 is a wasteful number, since it uses less digits than its factorization.

40400444404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100111105 (or 10100111103 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40400444404 its reverse (40444400404), we get a palindrome (80844844808).

The spelling of 40400444404 in words is "forty billion, four hundred million, four hundred forty-four thousand, four hundred four".