18241282 has 4 divisors (see below), whose sum is σ = 27361926. Its totient is φ = 9120640.

The previous prime is 18241271. The next prime is 18241283. The reversal of 18241282 is 28214281.

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., 16394401 + 1846881 = 4049^2 + 1359^2 .

It is a super-3 number, since 3×18241282³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18241282.

It is not an unprimeable number, because it can be changed into a prime (18241283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4560319 + ... + 4560322.

Almost surely, 2^18241282 is an apocalyptic number.

18241282 is a deficient number, since it is larger than the sum of its proper divisors (9120644).

18241282 is an equidigital number, since it uses as much as digits as its factorization.

18241282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120643.

The product of its digits is 2048, while the sum is 28.

The square root of 18241282 is about 4270.9813860517. The cubic root of 18241282 is about 263.2399416015.

The spelling of 18241282 in words is "eighteen million, two hundred forty-one thousand, two hundred eighty-two".