18009614 has 16 divisors (see below), whose sum is σ = 31062528. Its totient is φ = 7671192.

The previous prime is 18009583. The next prime is 18009631. The reversal of 18009614 is 41690081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (1941408).

Almost surely, 2^18009614 is an apocalyptic number.

18009614 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18009614 is a deficient number, since it is larger than the sum of its proper divisors (13052914).

18009614 is a wasteful number, since it uses less digits than its factorization.

18009614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7879.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 18009614 is about 4243.7735566357. The cubic root of 18009614 is about 262.1207900196.

Adding to 18009614 its reverse (41690081), we get a palindrome (59699695).

The spelling of 18009614 in words is "eighteen million, nine thousand, six hundred fourteen".