18000298 has 8 divisors (see below), whose sum is σ = 27097380. Its totient is φ = 8967840.

The previous prime is 18000259. The next prime is 18000319. The reversal of 18000298 is 89200081.

It can be written as a sum of positive squares in 2 ways, for example, as 16670889 + 1329409 = 4083^2 + 1153^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15453 + ... + 16576.

Almost surely, 2^18000298 is an apocalyptic number.

18000298 is a deficient number, since it is larger than the sum of its proper divisors (9097082).

18000298 is a wasteful number, since it uses less digits than its factorization.

18000298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32312.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 18000298 is about 4242.6758066107. The cubic root of 18000298 is about 262.0755856739.

The spelling of 18000298 in words is "eighteen million, two hundred ninety-eight", and thus it is an aban number.