443221422 has 16 divisors (see below), whose sum is σ = 1013077632. Its totient is φ = 126634680.

The previous prime is 443221403. The next prime is 443221423. The reversal of 443221422 is 224122344.

It is a junction number, because it is equal to n+sod(n) for n = 443221392 and 443221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443221423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5276404 + ... + 5276487.

It is an arithmetic number, because the mean of its divisors is an integer number (63317352).

Almost surely, 2^443221422 is an apocalyptic number.

443221422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

443221422 is an abundant number, since it is smaller than the sum of its proper divisors (569856210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

443221422 is a wasteful number, since it uses less digits than its factorization.

443221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552903.

The product of its digits is 3072, while the sum is 24.

The square root of 443221422 is about 21052.8245610892. The cubic root of 443221422 is about 762.4421796880.

Adding to 443221422 its reverse (224122344), we get a palindrome (667343766).

The spelling of 443221422 in words is "four hundred forty-three million, two hundred twenty-one thousand, four hundred twenty-two".