9945660 has 48 divisors (see below), whose sum is σ = 29062656. Its totient is φ = 2536512.

The previous prime is 9945647. The next prime is 9945667. The reversal of 9945660 is 665499.

9945660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9945667) 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, 2224 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (605472).

Almost surely, 2^9945660 is an apocalyptic number.

It is an amenable number.

9945660 is an abundant number, since it is smaller than the sum of its proper divisors (19116996).

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

9945660 is a wasteful number, since it uses less digits than its factorization.

9945660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7240 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 9945660 is about 3153.6740478369. The cubic root of 9945660 is about 215.0525200701.

The spelling of 9945660 in words is "nine million, nine hundred forty-five thousand, six hundred sixty".