9640218 has 16 divisors (see below), whose sum is σ = 22034880. Its totient is φ = 2754336.

The previous prime is 9640199. The next prime is 9640219. The reversal of 9640218 is 8120469.

It is not an unprimeable number, because it can be changed into a prime (9640219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114723 + ... + 114806.

It is an arithmetic number, because the mean of its divisors is an integer number (1377180).

Almost surely, 2^9640218 is an apocalyptic number.

9640218 is an abundant number, since it is smaller than the sum of its proper divisors (12394662).

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

9640218 is a wasteful number, since it uses less digits than its factorization.

9640218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229541.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 9640218 is about 3104.8700455897. The cubic root of 9640218 is about 212.8280920241.

The spelling of 9640218 in words is "nine million, six hundred forty thousand, two hundred eighteen".