4253742209 has 4 divisors (see below), whose sum is σ = 4255786416. Its totient is φ = 4251698004.

The previous prime is 4253742187. The next prime is 4253742239. The reversal of 4253742209 is 9022473524.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4253742209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4253742239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018979 + ... + 1023144.

It is an arithmetic number, because the mean of its divisors is an integer number (1063946604).

Almost surely, 2^4253742209 is an apocalyptic number.

It is an amenable number.

4253742209 is a deficient number, since it is larger than the sum of its proper divisors (2044207).

4253742209 is a wasteful number, since it uses less digits than its factorization.

4253742209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044206.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 4253742209 is about 65220.7191696013. The cubic root of 4253742209 is about 1620.2811848705.

The spelling of 4253742209 in words is "four billion, two hundred fifty-three million, seven hundred forty-two thousand, two hundred nine".