444432001 has 4 divisors (see below), whose sum is σ = 478619092. Its totient is φ = 410244912.

The previous prime is 444431993. The next prime is 444432011. The reversal of 444432001 is 100234444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124880625 + 319551376 = 11175^2 + 17876^2 .

It is a cyclic number.

It is not a de Polignac number, because 444432001 - 2³ = 444431993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444432011) 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 3 ways as a sum of consecutive naturals, for example, 17093526 + ... + 17093551.

It is an arithmetic number, because the mean of its divisors is an integer number (119654773).

Almost surely, 2^444432001 is an apocalyptic number.

It is an amenable number.

444432001 is a deficient number, since it is larger than the sum of its proper divisors (34187091).

444432001 is a wasteful number, since it uses less digits than its factorization.

444432001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34187090.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 444432001 is about 21081.5559435256. Note that the first 3 decimals coincide. The cubic root of 444432001 is about 763.1357062084.

Adding to 444432001 its reverse (100234444), we get a palindrome (544666445).

The spelling of 444432001 in words is "four hundred forty-four million, four hundred thirty-two thousand, one".