1668224322 has 30 divisors (see below), whose sum is σ = 3739223433. Its totient is φ = 555901488.

The previous prime is 1668224321. The next prime is 1668224407. The reversal of 1668224322 is 2234228661.

It can be written as a sum of positive squares in 2 ways, for example, as 1661459121 + 6765201 = 40761^2 + 2601^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=28881.

It is not an unprimeable number, because it can be changed into a prime (1668224321) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 518254 + ... + 521462.

Almost surely, 2^1668224322 is an apocalyptic number.

1668224322 is an abundant number, since it is smaller than the sum of its proper divisors (2070999111).

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

1668224322 is an frugal number, since it uses more digits than its factorization.

1668224322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432 (or 3214 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1668224322 is about 40843.9018948974. The cubic root of 1668224322 is about 1186.0003474107. Note that the first 3 decimals are identical.

The spelling of 1668224322 in words is "one billion, six hundred sixty-eight million, two hundred twenty-four thousand, three hundred twenty-two".