443221444 has 6 divisors (see below), whose sum is σ = 775637534. Its totient is φ = 221610720.

The previous prime is 443221423. The next prime is 443221447. The reversal of 443221444 is 444122344.

It can be written as a sum of positive squares in only one way, i.e., 397523844 + 45697600 = 19938^2 + 6760^2 .

It is not an unprimeable number, because it can be changed into a prime (443221447) 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, 55402677 + ... + 55402684.

Almost surely, 2^443221444 is an apocalyptic number.

It is an amenable number.

443221444 is a deficient number, since it is larger than the sum of its proper divisors (332416090).

443221444 is a wasteful number, since it uses less digits than its factorization.

443221444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110805365 (or 110805363 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 443221444 is about 21052.8250835844. The cubic root of 443221444 is about 762.4421923030.

Adding to 443221444 its reverse (444122344), we get a palindrome (887343788).

The spelling of 443221444 in words is "four hundred forty-three million, two hundred twenty-one thousand, four hundred forty-four".