30204218 has 16 divisors (see below), whose sum is σ = 49511520. Its totient is φ = 13705200.

The previous prime is 30204217. The next prime is 30204233. The reversal of 30204218 is 81240203.

It is a self number, because there is not a number n which added to its sum of digits gives 30204218.

It is not an unprimeable number, because it can be changed into a prime (30204217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19973 + ... + 21431.

It is an arithmetic number, because the mean of its divisors is an integer number (3094470).

Almost surely, 2^30204218 is an apocalyptic number.

30204218 is a deficient number, since it is larger than the sum of its proper divisors (19307302).

30204218 is a wasteful number, since it uses less digits than its factorization.

30204218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 30204218 is about 5495.8364240578. The cubic root of 30204218 is about 311.4267154530.

The spelling of 30204218 in words is "thirty million, two hundred four thousand, two hundred eighteen".