8018194 has 4 divisors (see below), whose sum is σ = 12027294. Its totient is φ = 4009096.

The previous prime is 8018189. The next prime is 8018207. The reversal of 8018194 is 4918108.

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., 6315169 + 1703025 = 2513^2 + 1305^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2004547 + ... + 2004550.

Almost surely, 2^8018194 is an apocalyptic number.

8018194 is a deficient number, since it is larger than the sum of its proper divisors (4009100).

8018194 is a wasteful number, since it uses less digits than its factorization.

8018194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009099.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 8018194 is about 2831.6415733634. The cubic root of 8018194 is about 200.1515018736.

The spelling of 8018194 in words is "eight million, eighteen thousand, one hundred ninety-four".