198393546 has 16 divisors (see below), whose sum is σ = 427309344. Its totient is φ = 61044144.

The previous prime is 198393539. The next prime is 198393571. The reversal of 198393546 is 645393891.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198393495 and 198393504.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1271676 + ... + 1271831.

It is an arithmetic number, because the mean of its divisors is an integer number (26706834).

Almost surely, 2^198393546 is an apocalyptic number.

198393546 is an abundant number, since it is smaller than the sum of its proper divisors (228915798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198393546 is a wasteful number, since it uses less digits than its factorization.

198393546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543525.

The product of its digits is 699840, while the sum is 48.

The square root of 198393546 is about 14085.2243858591. The cubic root of 198393546 is about 583.2335699505.

The spelling of 198393546 in words is "one hundred ninety-eight million, three hundred ninety-three thousand, five hundred forty-six".