196271868 has 72 divisors (see below), whose sum is σ = 525169008. Its totient is φ = 56828928.

The previous prime is 196271861. The next prime is 196271899. The reversal of 196271868 is 868172691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196271861) 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, 31630 + ... + 37322.

It is an arithmetic number, because the mean of its divisors is an integer number (7294014).

Almost surely, 2^196271868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196271868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262584504).

196271868 is an abundant number, since it is smaller than the sum of its proper divisors (328897140).

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

196271868 is a wasteful number, since it uses less digits than its factorization.

196271868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743 (or 5728 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 196271868 is about 14009.7062067696. The cubic root of 196271868 is about 581.1470246066.

The spelling of 196271868 in words is "one hundred ninety-six million, two hundred seventy-one thousand, eight hundred sixty-eight".