1217883296 has 24 divisors (see below), whose sum is σ = 2740237920. Its totient is φ = 521949888.

The previous prime is 1217883257. The next prime is 1217883301. The reversal of 1217883296 is 6923887121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1217883296.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2718266 + ... + 2718713.

It is an arithmetic number, because the mean of its divisors is an integer number (114176580).

Almost surely, 2^1217883296 is an apocalyptic number.

1217883296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1217883296 is an abundant number, since it is smaller than the sum of its proper divisors (1522354624).

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

1217883296 is an equidigital number, since it uses as much as digits as its factorization.

1217883296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436996 (or 5436988 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 1217883296 is about 34898.1847092367. The cubic root of 1217883296 is about 1067.9114048837.

The spelling of 1217883296 in words is "one billion, two hundred seventeen million, eight hundred eighty-three thousand, two hundred ninety-six".