198268249 has 8 divisors (see below), whose sum is σ = 208902240. Its totient is φ = 187654176.

The previous prime is 198268247. The next prime is 198268253. The reversal of 198268249 is 942862891.

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

It is a cyclic number.

It is not a de Polignac number, because 198268249 - 2¹ = 198268247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198268247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18294 + ... + 27040.

It is an arithmetic number, because the mean of its divisors is an integer number (26112780).

Almost surely, 2^198268249 is an apocalyptic number.

198268249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

198268249 is a deficient number, since it is larger than the sum of its proper divisors (10633991).

198268249 is a wasteful number, since it uses less digits than its factorization.

198268249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9959.

The product of its digits is 497664, while the sum is 49.

The square root of 198268249 is about 14080.7758664074. The cubic root of 198268249 is about 583.1107621816.

The spelling of 198268249 in words is "one hundred ninety-eight million, two hundred sixty-eight thousand, two hundred forty-nine".