196688880 has 120 divisors (see below), whose sum is σ = 676014768. Its totient is φ = 51222528.

The previous prime is 196688867. The next prime is 196688909. The reversal of 196688880 is 88886691.

It is a tau number, because it is divible by the number of its divisors (120).

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 23 ways as a sum of consecutive naturals, for example, 27784 + ... + 34136.

Almost surely, 2^196688880 is an apocalyptic number.

196688880 is a gapful number since it is divisible by the number (10) 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 196688880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338007384).

196688880 is an abundant number, since it is smaller than the sum of its proper divisors (479325888).

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

196688880 is a wasteful number, since it uses less digits than its factorization.

196688880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6415 (or 6406 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 196688880 is about 14024.5812771719. The cubic root of 196688880 is about 581.5583144052.

The spelling of 196688880 in words is "one hundred ninety-six million, six hundred eighty-eight thousand, eight hundred eighty".