9731940 has 48 divisors (see below), whose sum is σ = 27706560. Its totient is φ = 2551680.

The previous prime is 9731929. The next prime is 9731947. The reversal of 9731940 is 491379.

It is not an unprimeable number, because it can be changed into a prime (9731947) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2331 + ... + 4989.

It is an arithmetic number, because the mean of its divisors is an integer number (577220).

Almost surely, 2^9731940 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 9731940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13853280).

9731940 is an abundant number, since it is smaller than the sum of its proper divisors (17974620).

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

9731940 is a wasteful number, since it uses less digits than its factorization.

9731940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 9731940 is about 3119.6057443209. The cubic root of 9731940 is about 213.5009479159.

The spelling of 9731940 in words is "nine million, seven hundred thirty-one thousand, nine hundred forty".