1320344616 has 16 divisors (see below), whose sum is σ = 3300861600. Its totient is φ = 440114864.

The previous prime is 1320344603. The next prime is 1320344659. The reversal of 1320344616 is 6164430231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27507156 + ... + 27507203.

It is an arithmetic number, because the mean of its divisors is an integer number (206303850).

Almost surely, 2^1320344616 is an apocalyptic number.

It is an amenable number.

1320344616 is an abundant number, since it is smaller than the sum of its proper divisors (1980516984).

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

1320344616 is a wasteful number, since it uses less digits than its factorization.

1320344616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55014368 (or 55014364 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1320344616 is about 36336.5465612790. The cubic root of 1320344616 is about 1097.0567644072.

Adding to 1320344616 its reverse (6164430231), we get a palindrome (7484774847).

The spelling of 1320344616 in words is "one billion, three hundred twenty million, three hundred forty-four thousand, six hundred sixteen".