9789042 has 16 divisors (see below), whose sum is σ = 20729952. Its totient is φ = 3071040.

The previous prime is 9789011. The next prime is 9789071. The reversal of 9789042 is 2409879.

It is an Ulam number.

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 in 7 ways as a sum of consecutive naturals, for example, 47884 + ... + 48087.

It is an arithmetic number, because the mean of its divisors is an integer number (1295622).

Almost surely, 2^9789042 is an apocalyptic number.

9789042 is an abundant number, since it is smaller than the sum of its proper divisors (10940910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9789042 is a wasteful number, since it uses less digits than its factorization.

9789042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95993.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 9789042 is about 3128.7444766232. The cubic root of 9789042 is about 213.9177049861.

The spelling of 9789042 in words is "nine million, seven hundred eighty-nine thousand, forty-two".