1268591296 has 28 divisors (see below), whose sum is σ = 2876984848. Its totient is φ = 543681792.

The previous prime is 1268591281. The next prime is 1268591309. The reversal of 1268591296 is 6921958621.

It is a tau number, because it is divible by the number of its divisors (28).

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, 1415391 + ... + 1416286.

Almost surely, 2^1268591296 is an apocalyptic number.

1268591296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1268591296 is an abundant number, since it is smaller than the sum of its proper divisors (1608393552).

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

1268591296 is an equidigital number, since it uses as much as digits as its factorization.

1268591296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831696 (or 2831686 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 1268591296 is about 35617.2892848403. The cubic root of 1268591296 is about 1082.5315829048.

The spelling of 1268591296 in words is "one billion, two hundred sixty-eight million, five hundred ninety-one thousand, two hundred ninety-six".