444018401 has 2 divisors, whose sum is σ = 444018402. Its totient is φ = 444018400.

The previous prime is 444018383. The next prime is 444018409. The reversal of 444018401 is 104810444.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389036176 + 54982225 = 19724^2 + 7415^2 .

It is a cyclic number.

It is not a de Polignac number, because 444018401 - 2²⁶ = 376909537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (444018409) 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, 222009200 + 222009201.

It is an arithmetic number, because the mean of its divisors is an integer number (222009201).

Almost surely, 2^444018401 is an apocalyptic number.

It is an amenable number.

444018401 is a deficient number, since it is larger than the sum of its proper divisors (1).

444018401 is an equidigital number, since it uses as much as digits as its factorization.

444018401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 444018401 is about 21071.7441375886. The cubic root of 444018401 is about 762.8989014103.

Adding to 444018401 its reverse (104810444), we get a palindrome (548828845).

The spelling of 444018401 in words is "four hundred forty-four million, eighteen thousand, four hundred one".