18618714 has 16 divisors (see below), whose sum is σ = 41375040. Its totient is φ = 6206220.

The previous prime is 18618709. The next prime is 18618731. The reversal of 18618714 is 41781681.

It is a super-3 number, since 3×18618714³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 172342 + ... + 172449.

It is an arithmetic number, because the mean of its divisors is an integer number (2585940).

Almost surely, 2^18618714 is an apocalyptic number.

18618714 is an abundant number, since it is smaller than the sum of its proper divisors (22756326).

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

18618714 is a wasteful number, since it uses less digits than its factorization.

18618714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344802 (or 344796 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 18618714 is about 4314.9407875427. The cubic root of 18618714 is about 265.0431352591.

The spelling of 18618714 in words is "eighteen million, six hundred eighteen thousand, seven hundred fourteen".