18162194 has 8 divisors (see below), whose sum is σ = 27274368. Its totient is φ = 9070740.

The previous prime is 18162173. The next prime is 18162217. The reversal of 18162194 is 49126181.

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

It is a super-4 number, since 4×18162194⁴ (a number of 30 digits) contains 4444 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18162194.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2762 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (3409296).

Almost surely, 2^18162194 is an apocalyptic number.

18162194 is a deficient number, since it is larger than the sum of its proper divisors (9112174).

18162194 is an equidigital number, since it uses as much as digits as its factorization.

18162194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360.

The product of its digits is 3456, while the sum is 32.

The square root of 18162194 is about 4261.7125665629. The cubic root of 18162194 is about 262.8589508101.

The spelling of 18162194 in words is "eighteen million, one hundred sixty-two thousand, one hundred ninety-four".