1328012200 has 24 divisors (see below), whose sum is σ = 3087628830. Its totient is φ = 531204800.

The previous prime is 1328012197. The next prime is 1328012209. The reversal of 1328012200 is 22108231.

It can be written as a sum of positive squares in 3 ways, for example, as 809174916 + 518837284 = 28446^2 + 22778^2 .

It is not an unprimeable number, because it can be changed into a prime (1328012209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3319831 + ... + 3320230.

Almost surely, 2^1328012200 is an apocalyptic number.

1328012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1328012200 is an abundant number, since it is smaller than the sum of its proper divisors (1759616630).

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

1328012200 is a wasteful number, since it uses less digits than its factorization.

1328012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640077 (or 6640068 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1328012200 is about 36441.9017066892. The cubic root of 1328012200 is about 1099.1762979499.

The spelling of 1328012200 in words is "one billion, three hundred twenty-eight million, twelve thousand, two hundred".