1328267276 has 24 divisors (see below), whose sum is σ = 2796353280. Its totient is φ = 539296272.

The previous prime is 1328267263. The next prime is 1328267299. The reversal of 1328267276 is 6727628231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247840 + ... + 1248903.

It is an arithmetic number, because the mean of its divisors is an integer number (116514720).

Almost surely, 2^1328267276 is an apocalyptic number.

It is an amenable number.

1328267276 is an abundant number, since it is smaller than the sum of its proper divisors (1468086004).

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

1328267276 is a wasteful number, since it uses less digits than its factorization.

1328267276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496773 (or 2496771 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 1328267276 is about 36445.4013011244. The cubic root of 1328267276 is about 1099.2466676710.

The spelling of 1328267276 in words is "one billion, three hundred twenty-eight million, two hundred sixty-seven thousand, two hundred seventy-six".