840196228 has 6 divisors (see below), whose sum is σ = 1470343406. Its totient is φ = 420098112.

The previous prime is 840196213. The next prime is 840196241. The reversal of 840196228 is 822691048.

It can be written as a sum of positive squares in only one way, i.e., 776068164 + 64128064 = 27858^2 + 8008^2 .

It is a super-3 number, since 3×840196228³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105024525 + ... + 105024532.

Almost surely, 2^840196228 is an apocalyptic number.

It is an amenable number.

840196228 is a deficient number, since it is larger than the sum of its proper divisors (630147178).

840196228 is a wasteful number, since it uses less digits than its factorization.

840196228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210049061 (or 210049059 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 840196228 is about 28986.1385493135. The cubic root of 840196228 is about 943.6122620615.

The spelling of 840196228 in words is "eight hundred forty million, one hundred ninety-six thousand, two hundred twenty-eight".