18899014 has 4 divisors (see below), whose sum is σ = 28348524. Its totient is φ = 9449506.

The previous prime is 18899003. The next prime is 18899021. The reversal of 18899014 is 41099881.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 4724752 + ... + 4724755.

It is an arithmetic number, because the mean of its divisors is an integer number (7087131).

Almost surely, 2^18899014 is an apocalyptic number.

18899014 is a deficient number, since it is larger than the sum of its proper divisors (9449510).

18899014 is an equidigital number, since it uses as much as digits as its factorization.

18899014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449509.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 18899014 is about 4347.2996216042. The cubic root of 18899014 is about 266.3665683081.

The spelling of 18899014 in words is "eighteen million, eight hundred ninety-nine thousand, fourteen".