18037345 has 8 divisors (see below), whose sum is σ = 21672000. Its totient is φ = 14411760.

The previous prime is 18037343. The next prime is 18037361. The reversal of 18037345 is 54373081.

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

It is not a de Polignac number, because 18037345 - 2¹ = 18037343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18037343) 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, 3406 + ... + 6904.

It is an arithmetic number, because the mean of its divisors is an integer number (2709000).

Almost surely, 2^18037345 is an apocalyptic number.

It is an amenable number.

18037345 is a deficient number, since it is larger than the sum of its proper divisors (3634655).

18037345 is a wasteful number, since it uses less digits than its factorization.

18037345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 18037345 is about 4247.0395571504. The cubic root of 18037345 is about 262.2552579020.

The spelling of 18037345 in words is "eighteen million, thirty-seven thousand, three hundred forty-five".