18674914 has 4 divisors (see below), whose sum is σ = 28012374. Its totient is φ = 9337456.

The previous prime is 18674911. The next prime is 18674939. The reversal of 18674914 is 41947681.

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

It can be written as a sum of positive squares in only one way, i.e., 17363889 + 1311025 = 4167^2 + 1145^2 .

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 not an unprimeable number, because it can be changed into a prime (18674911) 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 as a sum of consecutive naturals, namely, 4668727 + ... + 4668730.

Almost surely, 2^18674914 is an apocalyptic number.

18674914 is a deficient number, since it is larger than the sum of its proper divisors (9337460).

18674914 is an equidigital number, since it uses as much as digits as its factorization.

18674914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337459.

The product of its digits is 48384, while the sum is 40.

The square root of 18674914 is about 4321.4481369097. The cubic root of 18674914 is about 265.3095421685.

The spelling of 18674914 in words is "eighteen million, six hundred seventy-four thousand, nine hundred fourteen".