1328375056 has 20 divisors (see below), whose sum is σ = 2580157404. Its totient is φ = 662528000.

The previous prime is 1328375039. The next prime is 1328375057. The reversal of 1328375056 is 6505738231.

It can be written as a sum of positive squares in 2 ways, for example, as 1323795456 + 4579600 = 36384^2 + 2140^2 .

It is not an unprimeable number, because it can be changed into a prime (1328375057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97105 + ... + 109936.

Almost surely, 2^1328375056 is an apocalyptic number.

1328375056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1328375056 is a deficient number, since it is larger than the sum of its proper divisors (1251782348).

1328375056 is a wasteful number, since it uses less digits than its factorization.

1328375056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207450 (or 207444 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1328375056 is about 36446.8799213321. The cubic root of 1328375056 is about 1099.2763990370.

The spelling of 1328375056 in words is "one billion, three hundred twenty-eight million, three hundred seventy-five thousand, fifty-six".