18828163 has 16 divisors (see below), whose sum is σ = 20835360. Its totient is φ = 16934400.

The previous prime is 18828137. The next prime is 18828167. The reversal of 18828163 is 36182881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18828163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18828167) 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 15 ways as a sum of consecutive naturals, for example, 89128 + ... + 89338.

It is an arithmetic number, because the mean of its divisors is an integer number (1302210).

Almost surely, 2^18828163 is an apocalyptic number.

18828163 is a deficient number, since it is larger than the sum of its proper divisors (2007197).

18828163 is a wasteful number, since it uses less digits than its factorization.

18828163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its digits is 18432, while the sum is 37.

The square root of 18828163 is about 4339.1431181744. The cubic root of 18828163 is about 266.0332886524.

The spelling of 18828163 in words is "eighteen million, eight hundred twenty-eight thousand, one hundred sixty-three".