4223264645 has 4 divisors (see below), whose sum is σ = 5067917580. Its totient is φ = 3378611712.

The previous prime is 4223264621. The next prime is 4223264659. The reversal of 4223264645 is 5464623224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2938615681 + 1284648964 = 54209^2 + 35842^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223264645 - 2⁶ = 4223264581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4223264599 and 4223264608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422326460 + ... + 422326469.

It is an arithmetic number, because the mean of its divisors is an integer number (1266979395).

Almost surely, 2^4223264645 is an apocalyptic number.

It is an amenable number.

4223264645 is a deficient number, since it is larger than the sum of its proper divisors (844652935).

4223264645 is an equidigital number, since it uses as much as digits as its factorization.

4223264645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844652934.

The product of its digits is 276480, while the sum is 38.

The square root of 4223264645 is about 64986.6497443898. The cubic root of 4223264645 is about 1616.4021976895.

Adding to 4223264645 its reverse (5464623224), we get a palindrome (9687887869).

The spelling of 4223264645 in words is "four billion, two hundred twenty-three million, two hundred sixty-four thousand, six hundred forty-five".