198030708 has 36 divisors (see below), whose sum is σ = 501778368. Its totient is φ = 65851920.

The previous prime is 198030689. The next prime is 198030709. The reversal of 198030708 is 807030891.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×198030708² = 78432322621962528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198030709) 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 11 ways as a sum of consecutive naturals, for example, 9135 + ... + 21897.

It is an arithmetic number, because the mean of its divisors is an integer number (13938288).

Almost surely, 2^198030708 is an apocalyptic number.

198030708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

198030708 is an abundant number, since it is smaller than the sum of its proper divisors (303747660).

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

198030708 is a wasteful number, since it uses less digits than its factorization.

198030708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204 (or 13199 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 198030708 is about 14072.3383984326. The cubic root of 198030708 is about 582.8777982258.

The spelling of 198030708 in words is "one hundred ninety-eight million, thirty thousand, seven hundred eight".