1320632608 has 24 divisors (see below), whose sum is σ = 2613479148. Its totient is φ = 656891904.

The previous prime is 1320632557. The next prime is 1320632629. The reversal of 1320632608 is 8062360231.

It can be written as a sum of positive squares in 2 ways, for example, as 1263660304 + 56972304 = 35548^2 + 7548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1320632608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100741 + ... + 113092.

Almost surely, 2^1320632608 is an apocalyptic number.

It is an amenable number.

1320632608 is a deficient number, since it is larger than the sum of its proper divisors (1292846540).

1320632608 is a wasteful number, since it uses less digits than its factorization.

1320632608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214036 (or 214028 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1320632608 is about 36340.5091874068. The cubic root of 1320632608 is about 1097.1365215150.

Adding to 1320632608 its reverse (8062360231), we get a palindrome (9382992839).

The spelling of 1320632608 in words is "one billion, three hundred twenty million, six hundred thirty-two thousand, six hundred eight".