444449851 has 2 divisors, whose sum is σ = 444449852. Its totient is φ = 444449850.

The previous prime is 444449807. The next prime is 444449879. The reversal of 444449851 is 158944444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444449851 - 2²⁷ = 310232123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444449798 and 444449807.

It is not a weakly prime, because it can be changed into another prime (444449351) 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, 222224925 + 222224926.

It is an arithmetic number, because the mean of its divisors is an integer number (222224926).

Almost surely, 2^444449851 is an apocalyptic number.

444449851 is a deficient number, since it is larger than the sum of its proper divisors (1).

444449851 is an equidigital number, since it uses as much as digits as its factorization.

444449851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 43.

The square root of 444449851 is about 21081.9792951231. The cubic root of 444449851 is about 763.1459228369.

The spelling of 444449851 in words is "four hundred forty-four million, four hundred forty-nine thousand, eight hundred fifty-one".