1216448882 has 8 divisors (see below), whose sum is σ = 1990552752. Its totient is φ = 552931300.

The previous prime is 1216448881. The next prime is 1216448899. The reversal of 1216448882 is 2888446121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1216448881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27646544 + ... + 27646587.

It is an arithmetic number, because the mean of its divisors is an integer number (248819094).

Almost surely, 2^1216448882 is an apocalyptic number.

1216448882 is a deficient number, since it is larger than the sum of its proper divisors (774103870).

1216448882 is a wasteful number, since it uses less digits than its factorization.

1216448882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55293144.

The product of its digits is 196608, while the sum is 44.

The square root of 1216448882 is about 34877.6272415427. The cubic root of 1216448882 is about 1067.4919807729.

The spelling of 1216448882 in words is "one billion, two hundred sixteen million, four hundred forty-eight thousand, eight hundred eighty-two".