444220003 has 2 divisors, whose sum is σ = 444220004. Its totient is φ = 444220002.

The previous prime is 444220001. The next prime is 444220043. The reversal of 444220003 is 300022444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444220003 - 2¹ = 444220001 is a prime.

It is a super-2 number, since 2×444220003² = 394662822130640018, which contains 22 as substring.

Together with 444220001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (444220001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222110001 + 222110002.

It is an arithmetic number, because the mean of its divisors is an integer number (222110002).

Almost surely, 2^444220003 is an apocalyptic number.

444220003 is a deficient number, since it is larger than the sum of its proper divisors (1).

444220003 is an equidigital number, since it uses as much as digits as its factorization.

444220003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 444220003 is about 21076.5272993442. The cubic root of 444220003 is about 763.0143460799.

Adding to 444220003 its reverse (300022444), we get a palindrome (744242447).

The spelling of 444220003 in words is "four hundred forty-four million, two hundred twenty thousand, three".