1689216448 has 28 divisors (see below), whose sum is σ = 3366455040. Its totient is φ = 840975872.

The previous prime is 1689216437. The next prime is 1689216449. The reversal of 1689216448 is 8446129861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689216449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41728 + ... + 71551.

Almost surely, 2^1689216448 is an apocalyptic number.

It is an amenable number.

1689216448 is a deficient number, since it is larger than the sum of its proper divisors (1677238592).

1689216448 is a wasteful number, since it uses less digits than its factorization.

1689216448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113524 (or 113514 counting only the distinct ones).

The product of its digits is 663552, while the sum is 49.

The square root of 1689216448 is about 41100.0784427475. The cubic root of 1689216448 is about 1190.9543101720.

The spelling of 1689216448 in words is "one billion, six hundred eighty-nine million, two hundred sixteen thousand, four hundred forty-eight".