1322752636 has 12 divisors (see below), whose sum is σ = 2315281360. Its totient is φ = 661243680.

The previous prime is 1322752633. The next prime is 1322752687. The reversal of 1322752636 is 6362572231.

It is a junction number, because it is equal to n+sod(n) for n = 1322752595 and 1322752604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322752633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8721 + ... + 52168.

Almost surely, 2^1322752636 is an apocalyptic number.

It is an amenable number.

1322752636 is a deficient number, since it is larger than the sum of its proper divisors (992528724).

1322752636 is a wasteful number, since it uses less digits than its factorization.

1322752636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66324 (or 66322 counting only the distinct ones).

The product of its digits is 90720, while the sum is 37.

The square root of 1322752636 is about 36369.6664268453. Note that the first 3 decimals coincide. The cubic root of 1322752636 is about 1097.7232899594.

The spelling of 1322752636 in words is "one billion, three hundred twenty-two million, seven hundred fifty-two thousand, six hundred thirty-six".