30109218 has 8 divisors (see below), whose sum is σ = 60218448. Its totient is φ = 10036404.

The previous prime is 30109201. The next prime is 30109223. The reversal of 30109218 is 81290103.

It is a sphenic number, since it is the product of 3 distinct primes.

30109218 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2509096 + ... + 2509107.

It is an arithmetic number, because the mean of its divisors is an integer number (7527306).

Almost surely, 2^30109218 is an apocalyptic number.

30109218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30109218 is a wasteful number, since it uses less digits than its factorization.

30109218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018208.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 30109218 is about 5487.1867108747. The cubic root of 30109218 is about 311.0998669500.

The spelling of 30109218 in words is "thirty million, one hundred nine thousand, two hundred eighteen".