1298256000 has 512 divisors, whose sum is σ = 4788875520. Its totient is φ = 309657600.

The previous prime is 1298255993. The next prime is 1298256013. The reversal of 1298256000 is 6528921.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 30191979 + ... + 30192021.

Almost surely, 2^1298256000 is an apocalyptic number.

1298256000 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 1298256000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2394437760).

1298256000 is an abundant number, since it is smaller than the sum of its proper divisors (3490619520).

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

1298256000 is a wasteful number, since it uses less digits than its factorization.

1298256000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1298256000 is about 36031.3197093862. The cubic root of 1298256000 is about 1090.9046161433.

The spelling of 1298256000 in words is "one billion, two hundred ninety-eight million, two hundred fifty-six thousand".