18274345 has 8 divisors (see below), whose sum is σ = 22636800. Its totient is φ = 14147760.

The previous prime is 18274339. The next prime is 18274349. The reversal of 18274345 is 54347281.

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

It is not a de Polignac number, because 18274345 - 2⁹ = 18273833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18274345.

It is not an unprimeable number, because it can be changed into a prime (18274349) by changing a digit.

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, 58795 + ... + 59104.

It is an arithmetic number, because the mean of its divisors is an integer number (2829600).

Almost surely, 2^18274345 is an apocalyptic number.

It is an amenable number.

18274345 is a deficient number, since it is larger than the sum of its proper divisors (4362455).

18274345 is a wasteful number, since it uses less digits than its factorization.

18274345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117935.

The product of its digits is 26880, while the sum is 34.

The square root of 18274345 is about 4274.8502897762. The cubic root of 18274345 is about 263.3988896587.

The spelling of 18274345 in words is "eighteen million, two hundred seventy-four thousand, three hundred forty-five".