1328356456 has 32 divisors (see below), whose sum is σ = 2865600000. Its totient is φ = 565471296.

The previous prime is 1328356429. The next prime is 1328356487. The reversal of 1328356456 is 6546538231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71256 + ... + 87943.

It is an arithmetic number, because the mean of its divisors is an integer number (89550000).

Almost surely, 2^1328356456 is an apocalyptic number.

It is an amenable number.

1328356456 is an abundant number, since it is smaller than the sum of its proper divisors (1537243544).

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

1328356456 is a wasteful number, since it uses less digits than its factorization.

1328356456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159361 (or 159357 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 1328356456 is about 36446.6247545640. The cubic root of 1328356456 is about 1099.2712682982.

The spelling of 1328356456 in words is "one billion, three hundred twenty-eight million, three hundred fifty-six thousand, four hundred fifty-six".