8644042 has 8 divisors (see below), whose sum is σ = 14144832. Its totient is φ = 3929100.

The previous prime is 8644019. The next prime is 8644049. The reversal of 8644042 is 2404468.

8644042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8644042.

It is not an unprimeable number, because it can be changed into a prime (8644049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196434 + ... + 196477.

It is an arithmetic number, because the mean of its divisors is an integer number (1768104).

Almost surely, 2^8644042 is an apocalyptic number.

8644042 is a deficient number, since it is larger than the sum of its proper divisors (5500790).

8644042 is a wasteful number, since it uses less digits than its factorization.

8644042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392924.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 8644042 is about 2940.0751691071. The cubic root of 8644042 is about 205.2291073291.

The spelling of 8644042 in words is "eight million, six hundred forty-four thousand, forty-two".