1327377820 has 24 divisors (see below), whose sum is σ = 2789265024. Its totient is φ = 530613696.

The previous prime is 1327377797. The next prime is 1327377851. The reversal of 1327377820 is 287737231.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 12469 + ... + 53011.

It is an arithmetic number, because the mean of its divisors is an integer number (116219376).

Almost surely, 2^1327377820 is an apocalyptic number.

1327377820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1327377820 is an abundant number, since it is smaller than the sum of its proper divisors (1461887204).

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

1327377820 is a wasteful number, since it uses less digits than its factorization.

1327377820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42189 (or 42187 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 1327377820 is about 36433.1966755595. The cubic root of 1327377820 is about 1099.0012477207.

The spelling of 1327377820 in words is "one billion, three hundred twenty-seven million, three hundred seventy-seven thousand, eight hundred twenty".