844142 has 8 divisors (see below), whose sum is σ = 1363656. Its totient is φ = 389592.

The previous prime is 844141. The next prime is 844153. The reversal of 844142 is 241448.

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

It is a super-3 number, since 3×844142³ = 1804545270582333864, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16208 + ... + 16259.

It is an arithmetic number, because the mean of its divisors is an integer number (170457).

2⁸⁴⁴¹⁴² is an apocalyptic number.

844142 is a deficient number, since it is larger than the sum of its proper divisors (519514).

844142 is a wasteful number, since it uses less digits than its factorization.

844142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32482.

The product of its digits is 1024, while the sum is 23.

The square root of 844142 is about 918.7720065392. The cubic root of 844142 is about 94.5087102261.

The spelling of 844142 in words is "eight hundred forty-four thousand, one hundred forty-two".