18894016 has 14 divisors (see below), whose sum is σ = 37492940. Its totient is φ = 9446976.

The previous prime is 18893981. The next prime is 18894019. The reversal of 18894016 is 61049881.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18894019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147546 + ... + 147673.

Almost surely, 2^18894016 is an apocalyptic number.

18894016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18894016 is a deficient number, since it is larger than the sum of its proper divisors (18598924).

18894016 is an equidigital number, since it uses as much as digits as its factorization.

18894016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295231 (or 295221 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 18894016 is about 4346.7247439883. The cubic root of 18894016 is about 266.3430852932.

The spelling of 18894016 in words is "eighteen million, eight hundred ninety-four thousand, sixteen".