196722864 has 160 divisors (see below), whose sum is σ = 634959360. Its totient is φ = 57860352.

The previous prime is 196722859. The next prime is 196722913. The reversal of 196722864 is 468227691.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128407 + ... + 129929.

It is an arithmetic number, because the mean of its divisors is an integer number (3968496).

Almost surely, 2^196722864 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 196722864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317479680).

196722864 is an abundant number, since it is smaller than the sum of its proper divisors (438236496).

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

196722864 is a wasteful number, since it uses less digits than its factorization.

196722864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576 (or 1564 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 196722864 is about 14025.7928118164. The cubic root of 196722864 is about 581.5918064521.

The spelling of 196722864 in words is "one hundred ninety-six million, seven hundred twenty-two thousand, eight hundred sixty-four".