198104780 has 12 divisors (see below), whose sum is σ = 416020080. Its totient is φ = 79241904.

The previous prime is 198104779. The next prime is 198104783. The reversal of 198104780 is 87401891.

It is not an unprimeable number, because it can be changed into a prime (198104783) 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, 4952600 + ... + 4952639.

It is an arithmetic number, because the mean of its divisors is an integer number (34668340).

Almost surely, 2^198104780 is an apocalyptic number.

198104780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198104780 is an abundant number, since it is smaller than the sum of its proper divisors (217915300).

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

198104780 is a wasteful number, since it uses less digits than its factorization.

198104780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9905248 (or 9905246 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 198104780 is about 14074.9699822060. The cubic root of 198104780 is about 582.9504629533.

The spelling of 198104780 in words is "one hundred ninety-eight million, one hundred four thousand, seven hundred eighty".