44040001 has 2 divisors, whose sum is σ = 44040002. Its totient is φ = 44040000.

The previous prime is 44039999. The next prime is 44040077. The reversal of 44040001 is 10004044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 2772225 = 6424^2 + 1665^2 .

It is a cyclic number.

It is not a de Polignac number, because 44040001 - 2¹ = 44039999 is a prime.

Together with 44039999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44040701) 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 as a sum of consecutive naturals, namely, 22020000 + 22020001.

It is an arithmetic number, because the mean of its divisors is an integer number (22020001).

Almost surely, 2^44040001 is an apocalyptic number.

It is an amenable number.

44040001 is a deficient number, since it is larger than the sum of its proper divisors (1).

44040001 is an equidigital number, since it uses as much as digits as its factorization.

44040001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 44040001 is about 6636.2640845584. The cubic root of 44040001 is about 353.1417840562.

Adding to 44040001 its reverse (10004044), we get a palindrome (54044045).

The spelling of 44040001 in words is "forty-four million, forty thousand, one".