1327992580 has 12 divisors (see below), whose sum is σ = 2788784460. Its totient is φ = 531197024.

The previous prime is 1327992571. The next prime is 1327992599. The reversal of 1327992580 is 852997231.

It can be written as a sum of positive squares in 2 ways, for example, as 184470724 + 1143521856 = 13582^2 + 33816^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1327992580.

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, 33199795 + ... + 33199834.

It is an arithmetic number, because the mean of its divisors is an integer number (232398705).

Almost surely, 2^1327992580 is an apocalyptic number.

1327992580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1327992580 is an abundant number, since it is smaller than the sum of its proper divisors (1460791880).

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

1327992580 is a wasteful number, since it uses less digits than its factorization.

1327992580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66399638 (or 66399636 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1327992580 is about 36441.6325100838. The cubic root of 1327992580 is about 1099.1708848608.

The spelling of 1327992580 in words is "one billion, three hundred twenty-seven million, nine hundred ninety-two thousand, five hundred eighty".