9742122 has 96 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 2695680.

The previous prime is 9742121. The next prime is 9742147. The reversal of 9742122 is 2212479.

It is not an unprimeable number, because it can be changed into a prime (9742121) 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 47 ways as a sum of consecutive naturals, for example, 123279 + ... + 123357.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

Almost surely, 2^9742122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9742122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

9742122 is an abundant number, since it is smaller than the sum of its proper divisors (15417558).

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

9742122 is a wasteful number, since it uses less digits than its factorization.

9742122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 9742122 is about 3121.2372546796. The cubic root of 9742122 is about 213.5753801107.

The spelling of 9742122 in words is "nine million, seven hundred forty-two thousand, one hundred twenty-two".