44401001 has 8 divisors (see below), whose sum is σ = 46175880. Its totient is φ = 42642432.

The previous prime is 44400997. The next prime is 44401003. The reversal of 44401001 is 10010444.

It can be written as a sum of positive squares in 4 ways, for example, as 1104601 + 43296400 = 1051^2 + 6580^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 44401001 - 2² = 44400997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44401003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631 + ... + 9563.

It is an arithmetic number, because the mean of its divisors is an integer number (5771985).

Almost surely, 2^44401001 is an apocalyptic number.

It is an amenable number.

44401001 is a deficient number, since it is larger than the sum of its proper divisors (1774879).

44401001 is a wasteful number, since it uses less digits than its factorization.

44401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 44401001 is about 6663.4076117254. The cubic root of 44401001 is about 354.1040715643.

Adding to 44401001 its reverse (10010444), we get a palindrome (54411445).

The spelling of 44401001 in words is "forty-four million, four hundred one thousand, one".