196285866 has 64 divisors (see below), whose sum is σ = 462028800. Its totient is φ = 55566000.

The previous prime is 196285853. The next prime is 196285877. The reversal of 196285866 is 668582691.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260991 + ... + 261741.

It is an arithmetic number, because the mean of its divisors is an integer number (7219200).

Almost surely, 2^196285866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196285866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231014400).

196285866 is an abundant number, since it is smaller than the sum of its proper divisors (265742934).

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

196285866 is a wasteful number, since it uses less digits than its factorization.

196285866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 890 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 196285866 is about 14010.2057800733. The cubic root of 196285866 is about 581.1608399719.

The spelling of 196285866 in words is "one hundred ninety-six million, two hundred eighty-five thousand, eight hundred sixty-six".