18814328 has 16 divisors (see below), whose sum is σ = 37990680. Its totient is φ = 8683488.

The previous prime is 18814307. The next prime is 18814331. The reversal of 18814328 is 82341881.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 90350 + ... + 90557.

Almost surely, 2^18814328 is an apocalyptic number.

It is an amenable number.

18814328 is an abundant number, since it is smaller than the sum of its proper divisors (19176352).

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

18814328 is a wasteful number, since it uses less digits than its factorization.

18814328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180926 (or 180922 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 18814328 is about 4337.5486164422. The cubic root of 18814328 is about 265.9681119556.

The spelling of 18814328 in words is "eighteen million, eight hundred fourteen thousand, three hundred twenty-eight".