4239522073 has 4 divisors (see below), whose sum is σ = 4240841508. Its totient is φ = 4238202640.

The previous prime is 4239522071. The next prime is 4239522097. The reversal of 4239522073 is 3702259324.

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 1786499289 + 2453022784 = 42267^2 + 49528^2 .

It is a cyclic number.

It is not a de Polignac number, because 4239522073 - 2¹ = 4239522071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4239522071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654886 + ... + 661327.

It is an arithmetic number, because the mean of its divisors is an integer number (1060210377).

Almost surely, 2^4239522073 is an apocalyptic number.

It is an amenable number.

4239522073 is a deficient number, since it is larger than the sum of its proper divisors (1319435).

4239522073 is a wasteful number, since it uses less digits than its factorization.

4239522073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319434.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 4239522073 is about 65111.6124281990. The cubic root of 4239522073 is about 1618.4736516312.

The spelling of 4239522073 in words is "four billion, two hundred thirty-nine million, five hundred twenty-two thousand, seventy-three".