198449011 has 8 divisors (see below), whose sum is σ = 205420544. Its totient is φ = 191513160.

The previous prime is 198448963. The next prime is 198449029. The reversal of 198449011 is 110944891.

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 198449011 - 2⁹ = 198448499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198449081) 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, 2656 + ... + 20098.

It is an arithmetic number, because the mean of its divisors is an integer number (25677568).

Almost surely, 2^198449011 is an apocalyptic number.

198449011 is a deficient number, since it is larger than the sum of its proper divisors (6971533).

198449011 is a wasteful number, since it uses less digits than its factorization.

198449011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17841.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 198449011 is about 14087.1931554870. The cubic root of 198449011 is about 583.2879165366.

The spelling of 198449011 in words is "one hundred ninety-eight million, four hundred forty-nine thousand, eleven".