1297833984 has 168 divisors, whose sum is σ = 3884736960. Its totient is φ = 417005568.

The previous prime is 1297833973. The next prime is 1297833989. The reversal of 1297833984 is 4893387921.

It is a self number, because there is not a number n which added to its sum of digits gives 1297833984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297833989) 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 11 ways as a sum of consecutive naturals, for example, 2137809 + ... + 2138415.

Almost surely, 2^1297833984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297833984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942368480).

1297833984 is an abundant number, since it is smaller than the sum of its proper divisors (2586902976).

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

1297833984 is an equidigital number, since it uses as much as digits as its factorization.

1297833984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 641 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 1297833984 is about 36025.4629949429. The cubic root of 1297833984 is about 1090.7863988077.

The spelling of 1297833984 in words is "one billion, two hundred ninety-seven million, eight hundred thirty-three thousand, nine hundred eighty-four".