18474194 has 8 divisors (see below), whose sum is σ = 29169840. Its totient is φ = 8750916.

The previous prime is 18474191. The next prime is 18474217. The reversal of 18474194 is 49147481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 486163 = 18474194 / (1 + 8 + 4 + 7 + 4 + 1 + 9 + 4).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18474191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243044 + ... + 243119.

It is an arithmetic number, because the mean of its divisors is an integer number (3646230).

Almost surely, 2^18474194 is an apocalyptic number.

18474194 is a deficient number, since it is larger than the sum of its proper divisors (10695646).

18474194 is a wasteful number, since it uses less digits than its factorization.

18474194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486184.

The product of its digits is 32256, while the sum is 38.

The square root of 18474194 is about 4298.1617000760. The cubic root of 18474194 is about 264.3555909982.

The spelling of 18474194 in words is "eighteen million, four hundred seventy-four thousand, one hundred ninety-four".