196685824 has 52 divisors (see below), whose sum is σ = 406273600. Its totient is φ = 95109120.

The previous prime is 196685807. The next prime is 196685837. The reversal of 196685824 is 428586691.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126202 + ... + 127750.

Almost surely, 2^196685824 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 196685824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203136800).

196685824 is an abundant number, since it is smaller than the sum of its proper divisors (209587776).

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

196685824 is an equidigital number, since it uses as much as digits as its factorization.

196685824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1582 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 196685824 is about 14024.4723251893. The cubic root of 196685824 is about 581.5553024548. Note that the first 3 decimals are identical.

The spelling of 196685824 in words is "one hundred ninety-six million, six hundred eighty-five thousand, eight hundred twenty-four".