444020401 has 4 divisors (see below), whose sum is σ = 484385904. Its totient is φ = 403654900.

The previous prime is 444020389. The next prime is 444020407. The reversal of 444020401 is 104020444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 444020401 - 2²³ = 435631793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444020407) 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, 20182735 + ... + 20182756.

It is an arithmetic number, because the mean of its divisors is an integer number (121096476).

Almost surely, 2^444020401 is an apocalyptic number.

It is an amenable number.

444020401 is a deficient number, since it is larger than the sum of its proper divisors (40365503).

444020401 is a wasteful number, since it uses less digits than its factorization.

444020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40365502.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 444020401 is about 21071.7915944516. The cubic root of 444020401 is about 762.9000468549.

Adding to 444020401 its reverse (104020444), we get a palindrome (548040845).

The spelling of 444020401 in words is "four hundred forty-four million, twenty thousand, four hundred one".