1296059328 has 168 divisors, whose sum is σ = 3973415472. Its totient is φ = 402481152.

The previous prime is 1296059327. The next prime is 1296059351. The reversal of 1296059328 is 8239506921.

1296059328 is a `hidden beast` number, since 1 + 2 + 9 + 605 + 9 + 32 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296059321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047126 + ... + 1048362.

Almost surely, 2^1296059328 is an apocalyptic number.

1296059328 is a gapful number since it is divisible by the number (18) 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 1296059328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1986707736).

1296059328 is an abundant number, since it is smaller than the sum of its proper divisors (2677356144).

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

1296059328 is a wasteful number, since it uses less digits than its factorization.

1296059328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1296059328 is about 36000.8239905700. The cubic root of 1296059328 is about 1090.2889921940.

The spelling of 1296059328 in words is "one billion, two hundred ninety-six million, fifty-nine thousand, three hundred twenty-eight".