198548340 has 24 divisors (see below), whose sum is σ = 555935520. Its totient is φ = 52946208.

The previous prime is 198548299. The next prime is 198548353. The reversal of 198548340 is 43845891.

It is a junction number, because it is equal to n+sod(n) for n = 198548292 and 198548301.

It is a congruent number.

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, 1654510 + ... + 1654629.

It is an arithmetic number, because the mean of its divisors is an integer number (23163980).

Almost surely, 2^198548340 is an apocalyptic number.

198548340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198548340 is an abundant number, since it is smaller than the sum of its proper divisors (357387180).

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

198548340 is a wasteful number, since it uses less digits than its factorization.

198548340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309151 (or 3309149 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 198548340 is about 14090.7182215812. The cubic root of 198548340 is about 583.3852173352.

The spelling of 198548340 in words is "one hundred ninety-eight million, five hundred forty-eight thousand, three hundred forty".