9216940 has 24 divisors (see below), whose sum is σ = 19559232. Its totient is φ = 3648000.

The previous prime is 9216913. The next prime is 9216943. The reversal of 9216940 is 496129.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9216943) by changing a digit.

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, 436 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (814968).

Almost surely, 2^9216940 is an apocalyptic number.

It is an amenable number.

9216940 is an abundant number, since it is smaller than the sum of its proper divisors (10342292).

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

9216940 is a wasteful number, since it uses less digits than its factorization.

9216940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857 (or 4855 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 9216940 is about 3035.9413696579. The cubic root of 9216940 is about 209.6664394683. Note that the first 3 decimals are identical.

The spelling of 9216940 in words is "nine million, two hundred sixteen thousand, nine hundred forty".