198350649 has 24 divisors (see below), whose sum is σ = 327908672. Its totient is φ = 113179680.

The previous prime is 198350639. The next prime is 198350653. The reversal of 198350649 is 946053891.

It is a happy number.

It is not a de Polignac number, because 198350649 - 2⁸ = 198350393 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (198350609) 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, 51894 + ... + 55584.

Almost surely, 2^198350649 is an apocalyptic number.

It is an amenable number.

198350649 is a deficient number, since it is larger than the sum of its proper divisors (129558023).

198350649 is a wasteful number, since it uses less digits than its factorization.

198350649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557 (or 4554 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 198350649 is about 14083.7015375930. The cubic root of 198350649 is about 583.1915309924.

The spelling of 198350649 in words is "one hundred ninety-eight million, three hundred fifty thousand, six hundred forty-nine".