443421242 has 8 divisors (see below), whose sum is σ = 725598432. Its totient is φ = 201555100.

The previous prime is 443421157. The next prime is 443421257. The reversal of 443421242 is 242124344.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10077734 + ... + 10077777.

It is an arithmetic number, because the mean of its divisors is an integer number (90699804).

Almost surely, 2^443421242 is an apocalyptic number.

443421242 is a deficient number, since it is larger than the sum of its proper divisors (282177190).

443421242 is a wasteful number, since it uses less digits than its factorization.

443421242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20155524.

The product of its digits is 6144, while the sum is 26.

The square root of 443421242 is about 21057.5697078272. The cubic root of 443421242 is about 762.5567411685.

Adding to 443421242 its reverse (242124344), we get a palindrome (685545586).

The spelling of 443421242 in words is "four hundred forty-three million, four hundred twenty-one thousand, two hundred forty-two".