18814128 has 20 divisors (see below), whose sum is σ = 48603288. Its totient is φ = 6271360.

The previous prime is 18814079. The next prime is 18814141. The reversal of 18814128 is 82141881.

It is a nude number because it is divisible by every one of its digits.

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 3 ways as a sum of consecutive naturals, for example, 195933 + ... + 196028.

Almost surely, 2^18814128 is an apocalyptic number.

It is an amenable number.

18814128 is an abundant number, since it is smaller than the sum of its proper divisors (29789160).

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

18814128 is a wasteful number, since it uses less digits than its factorization.

18814128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391972 (or 391966 counting only the distinct ones).

The product of its digits is 4096, while the sum is 33.

The square root of 18814128 is about 4337.5255618843. The cubic root of 18814128 is about 265.9671695212.

The spelling of 18814128 in words is "eighteen million, eight hundred fourteen thousand, one hundred twenty-eight".