18386345 has 8 divisors (see below), whose sum is σ = 22270464. Its totient is φ = 14571184.

The previous prime is 18386339. The next prime is 18386351. The reversal of 18386345 is 54368381.

It is an interprime number because it is at equal distance from previous prime (18386339) and next prime (18386351).

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

It is a cyclic number.

It is not a de Polignac number, because 18386345 - 2¹⁸ = 18124201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18386299 and 18386308.

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, 16649 + ... + 17718.

It is an arithmetic number, because the mean of its divisors is an integer number (2783808).

Almost surely, 2^18386345 is an apocalyptic number.

It is an amenable number.

18386345 is a deficient number, since it is larger than the sum of its proper divisors (3884119).

18386345 is a wasteful number, since it uses less digits than its factorization.

18386345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34479.

The product of its digits is 69120, while the sum is 38.

The square root of 18386345 is about 4287.9301533490. The cubic root of 18386345 is about 263.9359013727.

The spelling of 18386345 in words is "eighteen million, three hundred eighty-six thousand, three hundred forty-five".