18975299 has 24 divisors (see below), whose sum is σ = 23392800. Its totient is φ = 15316224.

The previous prime is 18975289. The next prime is 18975301. The reversal of 18975299 is 99257981.

It is a happy number.

It is not a de Polignac number, because 18975299 - 2⁴ = 18975283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18975259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127277 + ... + 127425.

It is an arithmetic number, because the mean of its divisors is an integer number (974700).

Almost surely, 2^18975299 is an apocalyptic number.

18975299 is a deficient number, since it is larger than the sum of its proper divisors (4417501).

18975299 is a wasteful number, since it uses less digits than its factorization.

18975299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 292 counting only the distinct ones).

The product of its digits is 408240, while the sum is 50.

The square root of 18975299 is about 4356.0646230285. The cubic root of 18975299 is about 266.7244793057.

The spelling of 18975299 in words is "eighteen million, nine hundred seventy-five thousand, two hundred ninety-nine".