443320420 has 12 divisors (see below), whose sum is σ = 930972924. Its totient is φ = 177328160.

The previous prime is 443320387. The next prime is 443320453. The reversal of 443320420 is 24023344.

It is an interprime number because it is at equal distance from previous prime (443320387) and next prime (443320453).

It can be written as a sum of positive squares in 2 ways, for example, as 199148544 + 244171876 = 14112^2 + 15626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 443320391 and 443320400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11082991 + ... + 11083030.

It is an arithmetic number, because the mean of its divisors is an integer number (77581077).

Almost surely, 2^443320420 is an apocalyptic number.

It is an amenable number.

443320420 is an abundant number, since it is smaller than the sum of its proper divisors (487652504).

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

443320420 is a wasteful number, since it uses less digits than its factorization.

443320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22166030 (or 22166028 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 443320420 is about 21055.1756107614. The cubic root of 443320420 is about 762.4989418600.

Adding to 443320420 its reverse (24023344), we get a palindrome (467343764).

The spelling of 443320420 in words is "four hundred forty-three million, three hundred twenty thousand, four hundred twenty".