1320605346 has 16 divisors (see below), whose sum is σ = 2691045504. Its totient is φ = 431895984.

The previous prime is 1320605311. The next prime is 1320605347. The reversal of 1320605346 is 6435060231.

It is not an unprimeable number, because it can be changed into a prime (1320605347) 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, 2076106 + ... + 2076741.

It is an arithmetic number, because the mean of its divisors is an integer number (168190344).

Almost surely, 2^1320605346 is an apocalyptic number.

1320605346 is an abundant number, since it is smaller than the sum of its proper divisors (1370440158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320605346 is a wasteful number, since it uses less digits than its factorization.

1320605346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4152905.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1320605346 is about 36340.1340944141. The cubic root of 1320605346 is about 1097.1289720165.

Adding to 1320605346 its reverse (6435060231), we get a palindrome (7755665577).

The spelling of 1320605346 in words is "one billion, three hundred twenty million, six hundred five thousand, three hundred forty-six".