18142814 has 8 divisors (see below), whose sum is σ = 28397520. Its totient is φ = 8676976.

The previous prime is 18142793. The next prime is 18142819. The reversal of 18142814 is 41824181.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18142819) 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 in 3 ways as a sum of consecutive naturals, for example, 197159 + ... + 197250.

It is an arithmetic number, because the mean of its divisors is an integer number (3549690).

Almost surely, 2^18142814 is an apocalyptic number.

18142814 is a deficient number, since it is larger than the sum of its proper divisors (10254706).

18142814 is a wasteful number, since it uses less digits than its factorization.

18142814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394434.

The product of its digits is 2048, while the sum is 29.

The square root of 18142814 is about 4259.4382258697. The cubic root of 18142814 is about 262.7654228390.

Adding to 18142814 its reverse (41824181), we get a palindrome (59966995).

The spelling of 18142814 in words is "eighteen million, one hundred forty-two thousand, eight hundred fourteen".