18047282 has 8 divisors (see below), whose sum is σ = 29531952. Its totient is φ = 8203300.

The previous prime is 18047273. The next prime is 18047287. The reversal of 18047282 is 28274081.

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

It is not an unprimeable number, because it can be changed into a prime (18047287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410144 + ... + 410187.

It is an arithmetic number, because the mean of its divisors is an integer number (3691494).

Almost surely, 2^18047282 is an apocalyptic number.

18047282 is a deficient number, since it is larger than the sum of its proper divisors (11484670).

18047282 is a wasteful number, since it uses less digits than its factorization.

18047282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820344.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 18047282 is about 4248.2092697983. The cubic root of 18047282 is about 262.3034089664.

The spelling of 18047282 in words is "eighteen million, forty-seven thousand, two hundred eighty-two".