18316345 has 8 divisors (see below), whose sum is σ = 22052160. Its totient is φ = 14604720.

The previous prime is 18316343. The next prime is 18316351. The reversal of 18316345 is 54361381.

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

It is not a de Polignac number, because 18316345 - 2¹ = 18316343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18316343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4335 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (2756520).

Almost surely, 2^18316345 is an apocalyptic number.

It is an amenable number.

18316345 is a deficient number, since it is larger than the sum of its proper divisors (3735815).

18316345 is a wasteful number, since it uses less digits than its factorization.

18316345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12095.

The product of its digits is 8640, while the sum is 31.

The square root of 18316345 is about 4279.7599231733. The cubic root of 18316345 is about 263.6005255036.

The spelling of 18316345 in words is "eighteen million, three hundred sixteen thousand, three hundred forty-five".