444404489 has 2 divisors, whose sum is σ = 444404490. Its totient is φ = 444404488.

The previous prime is 444404449. The next prime is 444404503. The reversal of 444404489 is 984404444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277555600 + 166848889 = 16660^2 + 12917^2 .

It is a cyclic number.

It is not a de Polignac number, because 444404489 - 2¹⁶ = 444338953 is a prime.

It is a super-2 number, since 2×444404489² = 394990699686702242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444404449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222202244 + 222202245.

It is an arithmetic number, because the mean of its divisors is an integer number (222202245).

Almost surely, 2^444404489 is an apocalyptic number.

It is an amenable number.

444404489 is a deficient number, since it is larger than the sum of its proper divisors (1).

444404489 is an equidigital number, since it uses as much as digits as its factorization.

444404489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 41.

The square root of 444404489 is about 21080.9034199201. The cubic root of 444404489 is about 763.1199589004.

The spelling of 444404489 in words is "four hundred forty-four million, four hundred four thousand, four hundred eighty-nine".