198361892 has 12 divisors (see below), whose sum is σ = 347771760. Its totient is φ = 98998536.

The previous prime is 198361873. The next prime is 198361939. The reversal of 198361892 is 298163891.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43142 + ... + 47517.

It is an arithmetic number, because the mean of its divisors is an integer number (28980980).

Almost surely, 2^198361892 is an apocalyptic number.

It is an amenable number.

198361892 is a deficient number, since it is larger than the sum of its proper divisors (149409868).

198361892 is a wasteful number, since it uses less digits than its factorization.

198361892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91210 (or 91208 counting only the distinct ones).

The product of its digits is 186624, while the sum is 47.

The square root of 198361892 is about 14084.1006812647. The cubic root of 198361892 is about 583.2025496918.

The spelling of 198361892 in words is "one hundred ninety-eight million, three hundred sixty-one thousand, eight hundred ninety-two".