8644142 has 8 divisors (see below), whose sum is σ = 13963656. Its totient is φ = 3989592.

The previous prime is 8644123. The next prime is 8644147. The reversal of 8644142 is 2414468.

8644142 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8644147) 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, 166208 + ... + 166259.

It is an arithmetic number, because the mean of its divisors is an integer number (1745457).

Almost surely, 2^8644142 is an apocalyptic number.

8644142 is a deficient number, since it is larger than the sum of its proper divisors (5319514).

8644142 is a wasteful number, since it uses less digits than its factorization.

8644142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332482.

The product of its digits is 6144, while the sum is 29.

The square root of 8644142 is about 2940.0921754258. The cubic root of 8644142 is about 205.2298987348.

The spelling of 8644142 in words is "eight million, six hundred forty-four thousand, one hundred forty-two".