1295840768 has 40 divisors (see below), whose sum is σ = 2594966352. Its totient is φ = 646465536.

The previous prime is 1295840753. The next prime is 1295840771. The reversal of 1295840768 is 8670485921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246746 + ... + 251942.

Almost surely, 2^1295840768 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 1295840768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297483176).

1295840768 is an abundant number, since it is smaller than the sum of its proper divisors (1299125584).

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

1295840768 is an frugal number, since it uses more digits than its factorization.

1295840768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5702 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 1295840768 is about 35997.7883765100. The cubic root of 1295840768 is about 1090.2277020578.

The spelling of 1295840768 in words is "one billion, two hundred ninety-five million, eight hundred forty thousand, seven hundred sixty-eight".