196543872 has 96 divisors (see below), whose sum is σ = 646398480. Its totient is φ = 56153088.

The previous prime is 196543871. The next prime is 196543877. The reversal of 196543872 is 278345691.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196543871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4123 + ... + 20250.

Almost surely, 2^196543872 is an apocalyptic number.

196543872 is a gapful number since it is divisible by the number (12) 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 196543872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323199240).

196543872 is an abundant number, since it is smaller than the sum of its proper divisors (449854608).

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

196543872 is a wasteful number, since it uses less digits than its factorization.

196543872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24400 (or 24385 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 196543872 is about 14019.4105439565. The cubic root of 196543872 is about 581.4153621775.

The spelling of 196543872 in words is "one hundred ninety-six million, five hundred forty-three thousand, eight hundred seventy-two".