18830930 has 16 divisors (see below), whose sum is σ = 34214400. Its totient is φ = 7461552.

The previous prime is 18830897. The next prime is 18830939. The reversal of 18830930 is 3903881.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18830939) 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, 7730 + ... + 9869.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^18830930 is an apocalyptic number.

18830930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18830930 is a deficient number, since it is larger than the sum of its proper divisors (15383470).

18830930 is a wasteful number, since it uses less digits than its factorization.

18830930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17713.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18830930 is about 4339.4619482143. The cubic root of 18830930 is about 266.0463201601.

The spelling of 18830930 in words is "eighteen million, eight hundred thirty thousand, nine hundred thirty".