198550860 has 48 divisors (see below), whose sum is σ = 558039552. Its totient is φ = 52747200.

The previous prime is 198550841. The next prime is 198550867. The reversal of 198550860 is 68055891.

It is not an unprimeable number, because it can be changed into a prime (198550867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10155 + ... + 22365.

It is an arithmetic number, because the mean of its divisors is an integer number (11625824).

Almost surely, 2^198550860 is an apocalyptic number.

198550860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198550860 is an abundant number, since it is smaller than the sum of its proper divisors (359488692).

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

198550860 is a wasteful number, since it uses less digits than its factorization.

198550860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494 (or 12492 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 198550860 is about 14090.8076418635. The cubic root of 198550860 is about 583.3876854571.

The spelling of 198550860 in words is "one hundred ninety-eight million, five hundred fifty thousand, eight hundred sixty".