1327788392 has 64 divisors (see below), whose sum is σ = 2930688000. Its totient is φ = 552217536.

The previous prime is 1327788391. The next prime is 1327788409. The reversal of 1327788392 is 2938877231.

It is a self number, because there is not a number n which added to its sum of digits gives 1327788392.

It is not an unprimeable number, because it can be changed into a prime (1327788391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258473 + ... + 263559.

It is an arithmetic number, because the mean of its divisors is an integer number (45792000).

Almost surely, 2^1327788392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1327788392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465344000).

1327788392 is an abundant number, since it is smaller than the sum of its proper divisors (1602899608).

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

1327788392 is a wasteful number, since it uses less digits than its factorization.

1327788392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5234 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 1327788392 is about 36438.8308264686. The cubic root of 1327788392 is about 1099.1145469435.

The spelling of 1327788392 in words is "one billion, three hundred twenty-seven million, seven hundred eighty-eight thousand, three hundred ninety-two".