196838189 has 24 divisors (see below), whose sum is σ = 218800128. Its totient is φ = 176843520.

The previous prime is 196838143. The next prime is 196838197. The reversal of 196838189 is 981838691.

It is a de Polignac number, because none of the positive numbers 2^k-196838189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196838189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196838989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1137707 + ... + 1137879.

It is an arithmetic number, because the mean of its divisors is an integer number (9116672).

Almost surely, 2^196838189 is an apocalyptic number.

It is an amenable number.

196838189 is a deficient number, since it is larger than the sum of its proper divisors (21961939).

196838189 is a wasteful number, since it uses less digits than its factorization.

196838189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 348 counting only the distinct ones).

The product of its digits is 746496, while the sum is 53.

The square root of 196838189 is about 14029.9033852696. The cubic root of 196838189 is about 581.7054332592.

It can be divided in two parts, 19683 and 8189, that added together give a palindrome (27872).

The spelling of 196838189 in words is "one hundred ninety-six million, eight hundred thirty-eight thousand, one hundred eighty-nine".