444444401 has 8 divisors (see below), whose sum is σ = 460506600. Its totient is φ = 428431360.

The previous prime is 444444391. The next prime is 444444421. The reversal of 444444401 is 104444444.

It can be written as a sum of positive squares in 4 ways, for example, as 58125376 + 386319025 = 7624^2 + 19655^2 .

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 444444401 - 2⁶ = 444444337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6635 + ... + 30543.

It is an arithmetic number, because the mean of its divisors is an integer number (57563325).

Almost surely, 2^444444401 is an apocalyptic number.

It is an amenable number.

444444401 is a deficient number, since it is larger than the sum of its proper divisors (16062199).

444444401 is a wasteful number, since it uses less digits than its factorization.

444444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24579.

The product of its (nonzero) digits is 16384, while the sum is 29.

The square root of 444444401 is about 21081.8500374137. The cubic root of 444444401 is about 763.1428035031.

Adding to 444444401 its reverse (104444444), we get a palindrome (548888845).

The spelling of 444444401 in words is "four hundred forty-four million, four hundred forty-four thousand, four hundred one".