8443042 has 4 divisors (see below), whose sum is σ = 12664566. Its totient is φ = 4221520.

The previous prime is 8443037. The next prime is 8443063. The reversal of 8443042 is 2403448.

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., 8346321 + 96721 = 2889^2 + 311^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8442998 and 8443016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110759 + ... + 2110762.

Almost surely, 2^8443042 is an apocalyptic number.

8443042 is a deficient number, since it is larger than the sum of its proper divisors (4221524).

8443042 is a wasteful number, since it uses less digits than its factorization.

8443042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221523.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 8443042 is about 2905.6913118912. The cubic root of 8443042 is about 203.6258842372.

The spelling of 8443042 in words is "eight million, four hundred forty-three thousand, forty-two".