44040002001 has 8 divisors (see below), whose sum is σ = 62174120544. Its totient is φ = 27632942400.

The previous prime is 44040001991. The next prime is 44040002009. The reversal of 44040002001 is 10020004044.

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

It is not a de Polignac number, because 44040002001 - 2¹⁷ = 44039870929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44040002009) 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, 431764675 + ... + 431764776.

It is an arithmetic number, because the mean of its divisors is an integer number (7771765068).

Almost surely, 2^44040002001 is an apocalyptic number.

It is an amenable number.

44040002001 is a deficient number, since it is larger than the sum of its proper divisors (18134118543).

44040002001 is a wasteful number, since it uses less digits than its factorization.

44040002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863529471.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 44040002001 its reverse (10020004044), we get a palindrome (54060006045).

The spelling of 44040002001 in words is "forty-four billion, forty million, two thousand, one".