196218356 has 12 divisors (see below), whose sum is σ = 346782660. Its totient is φ = 97137600.

The previous prime is 196218343. The next prime is 196218361. The reversal of 196218356 is 653812691.

It can be written as a sum of positive squares in 2 ways, for example, as 109914256 + 86304100 = 10484^2 + 9290^2 .

It is a congruent number.

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, 242441 + ... + 243248.

It is an arithmetic number, because the mean of its divisors is an integer number (28898555).

Almost surely, 2^196218356 is an apocalyptic number.

It is an amenable number.

196218356 is a deficient number, since it is larger than the sum of its proper divisors (150564304).

196218356 is a wasteful number, since it uses less digits than its factorization.

196218356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485794 (or 485792 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 196218356 is about 14007.7962577987. The cubic root of 196218356 is about 581.0942047322.

The spelling of 196218356 in words is "one hundred ninety-six million, two hundred eighteen thousand, three hundred fifty-six".