9724142 has 8 divisors (see below), whose sum is σ = 15056832. Its totient is φ = 4705200.

The previous prime is 9724129. The next prime is 9724151. The reversal of 9724142 is 2414279.

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

It is a congruent number.

It is an unprimeable number.

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, 78359 + ... + 78482.

It is an arithmetic number, because the mean of its divisors is an integer number (1882104).

Almost surely, 2^9724142 is an apocalyptic number.

9724142 is a deficient number, since it is larger than the sum of its proper divisors (5332690).

9724142 is a wasteful number, since it uses less digits than its factorization.

9724142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156874.

The product of its digits is 4032, while the sum is 29.

The square root of 9724142 is about 3118.3556564318. The cubic root of 9724142 is about 213.4439080634.

The spelling of 9724142 in words is "nine million, seven hundred twenty-four thousand, one hundred forty-two".