1320208448 has 28 divisors (see below), whose sum is σ = 2821312620. Its totient is φ = 609326592.

The previous prime is 1320208411. The next prime is 1320208453. The reversal of 1320208448 is 8448020231.

It can be written as a sum of positive squares in 2 ways, for example, as 849839104 + 470369344 = 29152^2 + 21688^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792563 + ... + 794226.

It is an arithmetic number, because the mean of its divisors is an integer number (100761165).

Almost surely, 2^1320208448 is an apocalyptic number.

It is an amenable number.

1320208448 is an abundant number, since it is smaller than the sum of its proper divisors (1501104172).

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

1320208448 is a wasteful number, since it uses less digits than its factorization.

1320208448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586814 (or 1586804 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1320208448 is about 36334.6728071136. The cubic root of 1320208448 is about 1097.0190497178.

Adding to 1320208448 its reverse (8448020231), we get a palindrome (9768228679).

The spelling of 1320208448 in words is "one billion, three hundred twenty million, two hundred eight thousand, four hundred forty-eight".