18281014 has 8 divisors (see below), whose sum is σ = 27442800. Its totient is φ = 9133416.

The previous prime is 18280993. The next prime is 18281023. The reversal of 18281014 is 41018281.

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

It is a super-3 number, since 3×18281014³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18281014.

It is a congruent number.

It is an unprimeable number.

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, 687 + ... + 6085.

It is an arithmetic number, because the mean of its divisors is an integer number (3430350).

Almost surely, 2^18281014 is an apocalyptic number.

18281014 is a deficient number, since it is larger than the sum of its proper divisors (9161786).

18281014 is a wasteful number, since it uses less digits than its factorization.

18281014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18281014 is about 4275.6302459404. The cubic root of 18281014 is about 263.4309271691.

Adding to 18281014 its reverse (41018281), we get a palindrome (59299295).

The spelling of 18281014 in words is "eighteen million, two hundred eighty-one thousand, fourteen".