9431940 has 96 divisors (see below), whose sum is σ = 31981824. Its totient is φ = 2027520.

The previous prime is 9431897. The next prime is 9431941. The reversal of 9431940 is 491349.

It is a super-2 number, since 2×9431940² = 177922984327200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 9431898 and 9431907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9431941) 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 31 ways as a sum of consecutive naturals, for example, 6480 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (333144).

Almost surely, 2^9431940 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 9431940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15990912).

9431940 is an abundant number, since it is smaller than the sum of its proper divisors (22549884).

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

9431940 is a wasteful number, since it uses less digits than its factorization.

9431940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 9431940 is about 3071.1463657729. The cubic root of 9431940 is about 211.2841943644.

The spelling of 9431940 in words is "nine million, four hundred thirty-one thousand, nine hundred forty".