1296738496 has 28 divisors (see below), whose sum is σ = 2575824160. Its totient is φ = 647712000.

The previous prime is 1296738473. The next prime is 1296738503. The reversal of 1296738496 is 6948376921.

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, 56746 + ... + 76246.

It is an arithmetic number, because the mean of its divisors is an integer number (91993720).

Almost surely, 2^1296738496 is an apocalyptic number.

1296738496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1296738496 is a deficient number, since it is larger than the sum of its proper divisors (1279085664).

1296738496 is a wasteful number, since it uses less digits than its factorization.

1296738496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20552 (or 20542 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The square root of 1296738496 is about 36010.2554281416. The cubic root of 1296738496 is about 1090.4794053103.

The spelling of 1296738496 in words is "one billion, two hundred ninety-six million, seven hundred thirty-eight thousand, four hundred ninety-six".