9218530 has 16 divisors (see below), whose sum is σ = 16842240. Its totient is φ = 3632112.

The previous prime is 9218527. The next prime is 9218537. The reversal of 9218530 is 358129.

It is not an unprimeable number, because it can be changed into a prime (9218537) 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, 6210 + ... + 7549.

It is an arithmetic number, because the mean of its divisors is an integer number (1052640).

Almost surely, 2^9218530 is an apocalyptic number.

9218530 is a deficient number, since it is larger than the sum of its proper divisors (7623710).

9218530 is a wasteful number, since it uses less digits than its factorization.

9218530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13833.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 9218530 is about 3036.2032211300. The cubic root of 9218530 is about 209.6784951857.

The spelling of 9218530 in words is "nine million, two hundred eighteen thousand, five hundred thirty".