9930920 has 64 divisors (see below), whose sum is σ = 23976000. Its totient is φ = 3691008.

The previous prime is 9930919. The next prime is 9930923. The reversal of 9930920 is 290399.

It is not an unprimeable number, because it can be changed into a prime (9930923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55391 + ... + 55569.

It is an arithmetic number, because the mean of its divisors is an integer number (374625).

Almost surely, 2^9930920 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 9930920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11988000).

9930920 is an abundant number, since it is smaller than the sum of its proper divisors (14045080).

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

9930920 is a wasteful number, since it uses less digits than its factorization.

9930920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 9930920 is about 3151.3362245244. The cubic root of 9930920 is about 214.9462277640.

The spelling of 9930920 in words is "nine million, nine hundred thirty thousand, nine hundred twenty".