198456049 has 8 divisors (see below), whose sum is σ = 222349248. Its totient is φ = 175538160.

The previous prime is 198455993. The next prime is 198456053. The reversal of 198456049 is 940654891.

It is a happy number.

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 198456049 - 2⁷ = 198455921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198456649) 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, 243397 + ... + 244210.

It is an arithmetic number, because the mean of its divisors is an integer number (27793656).

Almost surely, 2^198456049 is an apocalyptic number.

It is an amenable number.

198456049 is a deficient number, since it is larger than the sum of its proper divisors (23893199).

198456049 is a wasteful number, since it uses less digits than its factorization.

198456049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487655.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 198456049 is about 14087.4429546316. The cubic root of 198456049 is about 583.2948118961.

The spelling of 198456049 in words is "one hundred ninety-eight million, four hundred fifty-six thousand, forty-nine".