18194142 has 8 divisors (see below), whose sum is σ = 36388296. Its totient is φ = 6064712.

The previous prime is 18194129. The next prime is 18194159. The reversal of 18194142 is 24149181.

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

18194142 is an admirable number.

It is a congruent number.

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, 1516173 + ... + 1516184.

It is an arithmetic number, because the mean of its divisors is an integer number (4548537).

Almost surely, 2^18194142 is an apocalyptic number.

18194142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18194142 is a wasteful number, since it uses less digits than its factorization.

18194142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032362.

The product of its digits is 2304, while the sum is 30.

The square root of 18194142 is about 4265.4591780956. The cubic root of 18194142 is about 263.0129868724.

It can be divided in two parts, 18194 and 142, that added together give a triangular number (18336 = T₁₉₁).

The spelling of 18194142 in words is "eighteen million, one hundred ninety-four thousand, one hundred forty-two".