30200018 has 16 divisors (see below), whose sum is σ = 46517856. Its totient is φ = 14696640.

The previous prime is 30200011. The next prime is 30200021. The reversal of 30200018 is 81000203.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30199975 and 30200011.

It is not an unprimeable number, because it can be changed into a prime (30200011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36833 + ... + 37643.

It is an arithmetic number, because the mean of its divisors is an integer number (2907366).

Almost surely, 2^30200018 is an apocalyptic number.

30200018 is a deficient number, since it is larger than the sum of its proper divisors (16317838).

30200018 is a wasteful number, since it uses less digits than its factorization.

30200018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 30200018 is about 5495.4543033311. The cubic root of 30200018 is about 311.4122797999.

The spelling of 30200018 in words is "thirty million, two hundred thousand, eighteen".