1296768 has 64 divisors (see below), whose sum is σ = 3769920. Its totient is φ = 391680.

The previous prime is 1296749. The next prime is 1296781. The reversal of 1296768 is 8676921.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4071 + ... + 4377.

It is an arithmetic number, because the mean of its divisors is an integer number (58905).

2^1296768 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 1296768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884960).

1296768 is an abundant number, since it is smaller than the sum of its proper divisors (2473152).

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

1296768 is a wasteful number, since it uses less digits than its factorization.

1296768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 323 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 1296768 is about 1138.7572173207. The cubic root of 1296768 is about 109.0487675613.

The spelling of 1296768 in words is "one million, two hundred ninety-six thousand, seven hundred sixty-eight".