18680299 has 8 divisors (see below), whose sum is σ = 20608560. Its totient is φ = 16790400.

The previous prime is 18680273. The next prime is 18680317. The reversal of 18680299 is 99208681.

It is a happy number.

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

It is not a de Polignac number, because 18680299 - 2¹¹ = 18678251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18680219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8562 + ... + 10519.

It is an arithmetic number, because the mean of its divisors is an integer number (2576070).

Almost surely, 2^18680299 is an apocalyptic number.

18680299 is a deficient number, since it is larger than the sum of its proper divisors (1928261).

18680299 is a wasteful number, since it uses less digits than its factorization.

18680299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19181.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 18680299 is about 4322.0711470312. The cubic root of 18680299 is about 265.3350408059.

The spelling of 18680299 in words is "eighteen million, six hundred eighty thousand, two hundred ninety-nine".