30030018 has 32 divisors (see below), whose sum is σ = 61430400. Its totient is φ = 9784320.

The previous prime is 30029969. The next prime is 30030023. The reversal of 30030018 is 81003003.

It is a super-3 number, since 3×30030018³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30029979 and 30030006.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66658 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (1919700).

Almost surely, 2^30030018 is an apocalyptic number.

30030018 is an abundant number, since it is smaller than the sum of its proper divisors (31400382).

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

30030018 is a wasteful number, since it uses less digits than its factorization.

30030018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30030018 is about 5479.9651458746. The cubic root of 30030018 is about 310.8268526099.

The spelling of 30030018 in words is "thirty million, thirty thousand, eighteen".