1320444606 has 64 divisors (see below), whose sum is σ = 2925699840. Its totient is φ = 394709760.

The previous prime is 1320444599. The next prime is 1320444623. The reversal of 1320444606 is 6064440231.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 904305 + ... + 905763.

It is an arithmetic number, because the mean of its divisors is an integer number (45714060).

Almost surely, 2^1320444606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320444606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462849920).

1320444606 is an abundant number, since it is smaller than the sum of its proper divisors (1605255234).

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

1320444606 is a wasteful number, since it uses less digits than its factorization.

1320444606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1320444606 is about 36337.9224227253. The cubic root of 1320444606 is about 1097.0844571615.

Adding to 1320444606 its reverse (6064440231), we get a palindrome (7384884837).

The spelling of 1320444606 in words is "one billion, three hundred twenty million, four hundred forty-four thousand, six hundred six".