18674234 has 4 divisors (see below), whose sum is σ = 28011354. Its totient is φ = 9337116.

The previous prime is 18674219. The next prime is 18674239. The reversal of 18674234 is 43247681.

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., 9954025 + 8720209 = 3155^2 + 2953^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18674194 and 18674203.

It is not an unprimeable number, because it can be changed into a prime (18674239) 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, 4668557 + ... + 4668560.

Almost surely, 2^18674234 is an apocalyptic number.

18674234 is a deficient number, since it is larger than the sum of its proper divisors (9337120).

18674234 is an equidigital number, since it uses as much as digits as its factorization.

18674234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337119.

The product of its digits is 32256, while the sum is 35.

The square root of 18674234 is about 4321.3694588637. The cubic root of 18674234 is about 265.3063219363.

The spelling of 18674234 in words is "eighteen million, six hundred seventy-four thousand, two hundred thirty-four".