4320205749 has 6 divisors (see below), whose sum is σ = 6240297206. Its totient is φ = 2880137160.

The previous prime is 4320205727. The next prime is 4320205751. The reversal of 4320205749 is 9475020234.

4320205749 is a `hidden beast` number, since 43 + 20 + 20 + 574 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3995124849 + 325080900 = 63207^2 + 18030^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4320205749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320205709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240011422 + ... + 240011439.

Almost surely, 2^4320205749 is an apocalyptic number.

It is an amenable number.

4320205749 is a deficient number, since it is larger than the sum of its proper divisors (1920091457).

4320205749 is a wasteful number, since it uses less digits than its factorization.

4320205749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480022867 (or 480022864 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 4320205749 is about 65728.2720676575. The cubic root of 4320205749 is about 1628.6764255053.

The spelling of 4320205749 in words is "four billion, three hundred twenty million, two hundred five thousand, seven hundred forty-nine".