40440400401 has 8 divisors (see below), whose sum is σ = 54162330880. Its totient is φ = 26839368432.

The previous prime is 40440400381. The next prime is 40440400423. The reversal of 40440400401 is 10400404404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40440400401 - 2¹¹ = 40440398353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40440400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30223846 + ... + 30225183.

It is an arithmetic number, because the mean of its divisors is an integer number (6770291360).

Almost surely, 2^40440400401 is an apocalyptic number.

It is an amenable number.

40440400401 is a deficient number, since it is larger than the sum of its proper divisors (13721930479).

40440400401 is a wasteful number, since it uses less digits than its factorization.

40440400401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60449255.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 40440400401 its reverse (10400404404), we get a palindrome (50840804805).

The spelling of 40440400401 in words is "forty billion, four hundred forty million, four hundred thousand, four hundred one".