196686336 has 160 divisors (see below), whose sum is σ = 653672448. Its totient is φ = 51056640.

The previous prime is 196686319. The next prime is 196686337. The reversal of 196686336 is 633686691.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196686337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117441 + ... + 119103.

Almost surely, 2^196686336 is an apocalyptic number.

196686336 is a gapful number since it is divisible by the number (16) 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 196686336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326836224).

196686336 is an abundant number, since it is smaller than the sum of its proper divisors (456986112).

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

196686336 is a wasteful number, since it uses less digits than its factorization.

196686336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1686 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 196686336 is about 14024.4905789836. The cubic root of 196686336 is about 581.5558070770. Note that the first 3 decimals are identical.

The spelling of 196686336 in words is "one hundred ninety-six million, six hundred eighty-six thousand, three hundred thirty-six".