198380399 has 8 divisors (see below), whose sum is σ = 226990080. Its totient is φ = 169838136.

The previous prime is 198380393. The next prime is 198380411. The reversal of 198380399 is 993083891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198380399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198380393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10379 + ... + 22460.

It is an arithmetic number, because the mean of its divisors is an integer number (28373760).

Almost surely, 2^198380399 is an apocalyptic number.

198380399 is a deficient number, since it is larger than the sum of its proper divisors (28609681).

198380399 is an equidigital number, since it uses as much as digits as its factorization.

198380399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33709.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 198380399 is about 14084.7576833966. The cubic root of 198380399 is about 583.2206865658.

The spelling of 198380399 in words is "one hundred ninety-eight million, three hundred eighty thousand, three hundred ninety-nine".