196978284 has 48 divisors (see below), whose sum is σ = 517171200. Its totient is φ = 64825488.

The previous prime is 196978283. The next prime is 196978291. The reversal of 196978284 is 482879691.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 196978284.

It is not an unprimeable number, because it can be changed into a prime (196978283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3012 + ... + 20075.

It is an arithmetic number, because the mean of its divisors is an integer number (10774400).

Almost surely, 2^196978284 is an apocalyptic number.

It is an amenable number.

196978284 is an abundant number, since it is smaller than the sum of its proper divisors (320192916).

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

196978284 is a wasteful number, since it uses less digits than its factorization.

196978284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23179 (or 23171 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 196978284 is about 14034.8952258291. The cubic root of 196978284 is about 581.8434056329.

The spelling of 196978284 in words is "one hundred ninety-six million, nine hundred seventy-eight thousand, two hundred eighty-four".