1322831228 has 24 divisors (see below), whose sum is σ = 2329362000. Its totient is φ = 657312768.

The previous prime is 1322831219. The next prime is 1322831233. The reversal of 1322831228 is 8221382231.

It is a junction number, because it is equal to n+sod(n) for n = 1322831194 and 1322831203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496163 + ... + 498821.

It is an arithmetic number, because the mean of its divisors is an integer number (97056750).

Almost surely, 2^1322831228 is an apocalyptic number.

It is an amenable number.

1322831228 is a deficient number, since it is larger than the sum of its proper divisors (1006530772).

1322831228 is a wasteful number, since it uses less digits than its factorization.

1322831228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3389 (or 3387 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 1322831228 is about 36370.7468716275. The cubic root of 1322831228 is about 1097.7450301190.

The spelling of 1322831228 in words is "one billion, three hundred twenty-two million, eight hundred thirty-one thousand, two hundred twenty-eight".