831370228 has 12 divisors (see below), whose sum is σ = 1566813220. Its totient is φ = 383709312.

The previous prime is 831370181. The next prime is 831370249. The reversal of 831370228 is 822073138.

It can be written as a sum of positive squares in 2 ways, for example, as 88698724 + 742671504 = 9418^2 + 27252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 831370193 and 831370202.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7993893 + ... + 7993996.

Almost surely, 2^831370228 is an apocalyptic number.

It is an amenable number.

831370228 is a deficient number, since it is larger than the sum of its proper divisors (735442992).

831370228 is a wasteful number, since it uses less digits than its factorization.

831370228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987906 (or 15987904 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 831370228 is about 28833.4914292390. The cubic root of 831370228 is about 940.2965067339.

The spelling of 831370228 in words is "eight hundred thirty-one million, three hundred seventy thousand, two hundred twenty-eight".