18434282 has 4 divisors (see below), whose sum is σ = 27651426. Its totient is φ = 9217140.

The previous prime is 18434267. The next prime is 18434287. The reversal of 18434282 is 28243481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 5909761 = 3539^2 + 2431^2 .

It is not an unprimeable number, because it can be changed into a prime (18434287) 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 as a sum of consecutive naturals, namely, 4608569 + ... + 4608572.

Almost surely, 2^18434282 is an apocalyptic number.

18434282 is a deficient number, since it is larger than the sum of its proper divisors (9217144).

18434282 is an equidigital number, since it uses as much as digits as its factorization.

18434282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217143.

The product of its digits is 12288, while the sum is 32.

The square root of 18434282 is about 4293.5162745703. The cubic root of 18434282 is about 264.1650807898.

The spelling of 18434282 in words is "eighteen million, four hundred thirty-four thousand, two hundred eighty-two".