443121242 has 16 divisors (see below), whose sum is σ = 674972352. Its totient is φ = 218141280.

The previous prime is 443121241. The next prime is 443121271. The reversal of 443121242 is 242121344.

It is a super-2 number, since 2×443121242² = 392712870223245128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (443121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92117 + ... + 96807.

It is an arithmetic number, because the mean of its divisors is an integer number (42185772).

Almost surely, 2^443121242 is an apocalyptic number.

443121242 is a deficient number, since it is larger than the sum of its proper divisors (231851110).

443121242 is a wasteful number, since it uses less digits than its factorization.

443121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its digits is 1536, while the sum is 23.

The square root of 443121242 is about 21050.4451734399. The cubic root of 443121242 is about 762.3847311914.

Adding to 443121242 its reverse (242121344), we get a palindrome (685242586).

It can be divided in two parts, 44312 and 1242, that added together give a palindrome (45554).

The spelling of 443121242 in words is "four hundred forty-three million, one hundred twenty-one thousand, two hundred forty-two".