1321068628 has 24 divisors (see below), whose sum is σ = 2525957280. Its totient is φ = 599553120.

The previous prime is 1321068611. The next prime is 1321068629. The reversal of 1321068628 is 8268601231.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321068629) 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 7 ways as a sum of consecutive naturals, for example, 5743 + ... + 51721.

It is an arithmetic number, because the mean of its divisors is an integer number (105248220).

Almost surely, 2^1321068628 is an apocalyptic number.

It is an amenable number.

1321068628 is a deficient number, since it is larger than the sum of its proper divisors (1204888652).

1321068628 is a wasteful number, since it uses less digits than its factorization.

1321068628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46647 (or 46645 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1321068628 is about 36346.5077827293. The cubic root of 1321068628 is about 1097.2572517434.

Adding to 1321068628 its reverse (8268601231), we get a palindrome (9589669859).

The spelling of 1321068628 in words is "one billion, three hundred twenty-one million, sixty-eight thousand, six hundred twenty-eight".