4223344545 has 72 divisors (see below), whose sum is σ = 8713875456. Its totient is φ = 1885730112.

The previous prime is 4223344513. The next prime is 4223344547. The reversal of 4223344545 is 5454433224.

4223344545 is a `hidden beast` number, since 42 + 2 + 33 + 44 + 545 = 666.

It is not a de Polignac number, because 4223344545 - 2⁵ = 4223344513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4223344547) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 72544 + ... + 117086.

It is an arithmetic number, because the mean of its divisors is an integer number (121026048).

Almost surely, 2^4223344545 is an apocalyptic number.

4223344545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4223344545 is an abundant number, since it is smaller than the sum of its proper divisors (4490530911).

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

4223344545 is a wasteful number, since it uses less digits than its factorization.

4223344545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44611 (or 44601 counting only the distinct ones).

The product of its digits is 230400, while the sum is 36.

The square root of 4223344545 is about 64987.2644831278. The cubic root of 4223344545 is about 1616.4123912034.

Adding to 4223344545 its reverse (5454433224), we get a palindrome (9677777769).

The spelling of 4223344545 in words is "four billion, two hundred twenty-three million, three hundred forty-four thousand, five hundred forty-five".