443243422 has 4 divisors (see below), whose sum is σ = 664865136. Its totient is φ = 221621710.

The previous prime is 443243413. The next prime is 443243429. The reversal of 443243422 is 224342344.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×443243422² = 392929462292540168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443243429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110810854 + ... + 110810857.

It is an arithmetic number, because the mean of its divisors is an integer number (166216284).

Almost surely, 2^443243422 is an apocalyptic number.

443243422 is a deficient number, since it is larger than the sum of its proper divisors (221621714).

443243422 is a wasteful number, since it uses less digits than its factorization.

443243422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221621713.

The product of its digits is 18432, while the sum is 28.

The square root of 443243422 is about 21053.3470498161. The cubic root of 443243422 is about 762.4547944892.

Adding to 443243422 its reverse (224342344), we get a palindrome (667585766).

The spelling of 443243422 in words is "four hundred forty-three million, two hundred forty-three thousand, four hundred twenty-two".