9404142 has 32 divisors (see below), whose sum is σ = 21078144. Its totient is φ = 2772000.

The previous prime is 9404141. The next prime is 9404147. The reversal of 9404142 is 2414049.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9404141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517 + ... + 4367.

It is an arithmetic number, because the mean of its divisors is an integer number (658692).

Almost surely, 2^9404142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9404142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10539072).

9404142 is an abundant number, since it is smaller than the sum of its proper divisors (11674002).

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

9404142 is a wasteful number, since it uses less digits than its factorization.

9404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 9404142 is about 3066.6173546760. The cubic root of 9404142 is about 211.0764231301.

The spelling of 9404142 in words is "nine million, four hundred four thousand, one hundred forty-two".