9129424 has 40 divisors (see below), whose sum is σ = 18972000. Its totient is φ = 4242816.

The previous prime is 9129401. The next prime is 9129437. The reversal of 9129424 is 4249219.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 17682 + ... + 18190.

It is an arithmetic number, because the mean of its divisors is an integer number (474300).

Almost surely, 2^9129424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9129424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9486000).

9129424 is an abundant number, since it is smaller than the sum of its proper divisors (9842576).

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

9129424 is a wasteful number, since it uses less digits than its factorization.

9129424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 589 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 9129424 is about 3021.4936703558. The cubic root of 9129424 is about 209.0007249504. Note that the first 3 decimals are identical.

The spelling of 9129424 in words is "nine million, one hundred twenty-nine thousand, four hundred twenty-four".