30130018 has 8 divisors (see below), whose sum is σ = 47853612. Its totient is φ = 14178816.

The previous prime is 30130007. The next prime is 30130021. The reversal of 30130018 is 81003103.

It can be written as a sum of positive squares in 2 ways, for example, as 27112849 + 3017169 = 5207^2 + 1737^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30129983 and 30130010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443055 + ... + 443122.

Almost surely, 2^30130018 is an apocalyptic number.

30130018 is a deficient number, since it is larger than the sum of its proper divisors (17723594).

30130018 is a wasteful number, since it uses less digits than its factorization.

30130018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886196.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 30130018 is about 5489.0817082641. The cubic root of 30130018 is about 311.1714882913.

The spelling of 30130018 in words is "thirty million, one hundred thirty thousand, eighteen".