1327256320 has 216 divisors, whose sum is σ = 3580376688. Its totient is φ = 468541440.

The previous prime is 1327256309. The next prime is 1327256339. The reversal of 1327256320 is 236527231.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15990999 + ... + 15991081.

It is an arithmetic number, because the mean of its divisors is an integer number (16575818).

Almost surely, 2^1327256320 is an apocalyptic number.

1327256320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1327256320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790188344).

1327256320 is an abundant number, since it is smaller than the sum of its proper divisors (2253120368).

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

1327256320 is an equidigital number, since it uses as much as digits as its factorization.

1327256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 1327256320 is about 36431.5292020524. The cubic root of 1327256320 is about 1098.9677147597.

The spelling of 1327256320 in words is "one billion, three hundred twenty-seven million, two hundred fifty-six thousand, three hundred twenty".