198945704 has 16 divisors (see below), whose sum is σ = 373763700. Its totient is φ = 99275392.

The previous prime is 198945697. The next prime is 198945709. The reversal of 198945704 is 407549891.

It can be written as a sum of positive squares in 2 ways, for example, as 145684900 + 53260804 = 12070^2 + 7298^2 .

It is not an unprimeable number, because it can be changed into a prime (198945709) 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 3 ways as a sum of consecutive naturals, for example, 20357 + ... + 28500.

Almost surely, 2^198945704 is an apocalyptic number.

It is an amenable number.

198945704 is a deficient number, since it is larger than the sum of its proper divisors (174817996).

198945704 is a wasteful number, since it uses less digits than its factorization.

198945704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49372 (or 49368 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 198945704 is about 14104.8113776824. The cubic root of 198945704 is about 583.7741432881.

The spelling of 198945704 in words is "one hundred ninety-eight million, nine hundred forty-five thousand, seven hundred four".