444466213 has 2 divisors, whose sum is σ = 444466214. Its totient is φ = 444466212.

The previous prime is 444466201. The next prime is 444466219. The reversal of 444466213 is 312664444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438399844 + 6066369 = 20938^2 + 2463^2 .

It is a cyclic number.

It is not a de Polignac number, because 444466213 - 2⁵ = 444466181 is a prime.

It is a super-2 number, since 2×444466213² = 395100428997122738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444466219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222233106 + 222233107.

It is an arithmetic number, because the mean of its divisors is an integer number (222233107).

Almost surely, 2^444466213 is an apocalyptic number.

It is an amenable number.

444466213 is a deficient number, since it is larger than the sum of its proper divisors (1).

444466213 is an equidigital number, since it uses as much as digits as its factorization.

444466213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 34.

The square root of 444466213 is about 21082.3673480945. The cubic root of 444466213 is about 763.1552875533.

The spelling of 444466213 in words is "four hundred forty-four million, four hundred sixty-six thousand, two hundred thirteen".