443305042 has 4 divisors (see below), whose sum is σ = 664957566. Its totient is φ = 221652520.

The previous prime is 443305033. The next prime is 443305133. The reversal of 443305042 is 240503344.

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

It can be written as a sum of positive squares in only one way, i.e., 246772681 + 196532361 = 15709^2 + 14019^2 .

It is a junction number, because it is equal to n+sod(n) for n = 443304998 and 443305016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110826259 + ... + 110826262.

Almost surely, 2^443305042 is an apocalyptic number.

443305042 is a deficient number, since it is larger than the sum of its proper divisors (221652524).

443305042 is a wasteful number, since it uses less digits than its factorization.

443305042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221652523.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 443305042 is about 21054.8104242237. The cubic root of 443305042 is about 762.4901251789.

Adding to 443305042 its reverse (240503344), we get a palindrome (683808386).

The spelling of 443305042 in words is "four hundred forty-three million, three hundred five thousand, forty-two".