4453221345 has 32 divisors (see below), whose sum is σ = 7219445760. Its totient is φ = 2343821760.

The previous prime is 4453221323. The next prime is 4453221347. The reversal of 4453221345 is 5431223544.

It is not a de Polignac number, because 4453221345 - 2⁸ = 4453221089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4453221347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357736 + ... + 369974.

It is an arithmetic number, because the mean of its divisors is an integer number (225607680).

Almost surely, 2^4453221345 is an apocalyptic number.

It is an amenable number.

4453221345 is a deficient number, since it is larger than the sum of its proper divisors (2766224415).

4453221345 is a wasteful number, since it uses less digits than its factorization.

4453221345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12565.

The product of its digits is 57600, while the sum is 33.

The square root of 4453221345 is about 66732.4609541713. The cubic root of 4453221345 is about 1645.2229561408. Note that the first 3 decimals are identical.

Adding to 4453221345 its reverse (5431223544), we get a palindrome (9884444889).

The spelling of 4453221345 in words is "four billion, four hundred fifty-three million, two hundred twenty-one thousand, three hundred forty-five".