1296760000 has 140 divisors (see below), whose sum is σ = 3406478328. Its totient is φ = 487936000.

The previous prime is 1296759991. The next prime is 1296760001. The reversal of 1296760000 is 676921.

It is not an unprimeable number, because it can be changed into a prime (1296760001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 679047 + ... + 680953.

Almost surely, 2^1296760000 is an apocalyptic number.

1296760000 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 1296760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703239164).

1296760000 is an abundant number, since it is smaller than the sum of its proper divisors (2109718328).

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

1296760000 is an equidigital number, since it uses as much as digits as its factorization.

1296760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1296760000 is about 36010.5540085126. The cubic root of 1296760000 is about 1090.4854331356.

The spelling of 1296760000 in words is "one billion, two hundred ninety-six million, seven hundred sixty thousand".