4042523245 has 16 divisors (see below), whose sum is σ = 5275207728. Its totient is φ = 2961515520.

The previous prime is 4042523231. The next prime is 4042523249. The reversal of 4042523245 is 5423252404.

It can be written as a sum of positive squares in 8 ways, for example, as 296838441 + 3745684804 = 17229^2 + 61202^2 .

It is not a de Polignac number, because 4042523245 - 2⁹ = 4042522733 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 (4042523249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639546 + ... + 645835.

It is an arithmetic number, because the mean of its divisors is an integer number (329700483).

Almost surely, 2^4042523245 is an apocalyptic number.

It is an amenable number.

4042523245 is a deficient number, since it is larger than the sum of its proper divisors (1232684483).

4042523245 is a wasteful number, since it uses less digits than its factorization.

4042523245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285440.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4042523245 is about 63580.8402350897. The cubic root of 4042523245 is about 1593.0063559889.

Adding to 4042523245 its reverse (5423252404), we get a palindrome (9465775649).

The spelling of 4042523245 in words is "four billion, forty-two million, five hundred twenty-three thousand, two hundred forty-five".