198189696 has 64 divisors (see below), whose sum is σ = 543456000. Its totient is φ = 63928320.

The previous prime is 198189661. The next prime is 198189701. The reversal of 198189696 is 696981891.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3580 + ... + 20228.

It is an arithmetic number, because the mean of its divisors is an integer number (8491500).

Almost surely, 2^198189696 is an apocalyptic number.

198189696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198189696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271728000).

198189696 is an abundant number, since it is smaller than the sum of its proper divisors (345266304).

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

198189696 is a wasteful number, since it uses less digits than its factorization.

198189696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16697 (or 16685 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 57.

The square root of 198189696 is about 14077.9862196267. The cubic root of 198189696 is about 583.0337433775.

The spelling of 198189696 in words is "one hundred ninety-eight million, one hundred eighty-nine thousand, six hundred ninety-six".