1328356260 has 480 divisors, whose sum is σ = 5432942592. Its totient is φ = 263450880.

The previous prime is 1328356259. The next prime is 1328356273. The reversal of 1328356260 is 626538231.

It is a happy number.

1328356260 is a `hidden beast` number, since 1 + 3 + 28 + 3 + 5 + 626 + 0 = 666.

1328356260 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2868789 + ... + 2869251.

Almost surely, 2^1328356260 is an apocalyptic number.

1328356260 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 1328356260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2716471296).

1328356260 is an abundant number, since it is smaller than the sum of its proper divisors (4104586332).

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

1328356260 is a wasteful number, since it uses less digits than its factorization.

1328356260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1328356260 is about 36446.6220657004. The cubic root of 1328356260 is about 1099.2712142321.

The spelling of 1328356260 in words is "one billion, three hundred twenty-eight million, three hundred fifty-six thousand, two hundred sixty".