196402220928 has 192 divisors, whose sum is σ = 568638392400. Its totient is φ = 65066803200.

The previous prime is 196402220881. The next prime is 196402220929. The reversal of 196402220928 is 829022204691.

196402220928 is a `hidden beast` number, since 19 + 6 + 402 + 2 + 209 + 28 = 666.

196402220928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196402220929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239222758 + ... + 239223578.

Almost surely, 2^196402220928 is an apocalyptic number.

196402220928 is a gapful number since it is divisible by the number (18) 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 196402220928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284319196200).

196402220928 is an abundant number, since it is smaller than the sum of its proper divisors (372236171472).

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

196402220928 is a wasteful number, since it uses less digits than its factorization.

196402220928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1846 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 196402220928 in words is "one hundred ninety-six billion, four hundred two million, two hundred twenty thousand, nine hundred twenty-eight".