4043242453 has 4 divisors (see below), whose sum is σ = 4043689228. Its totient is φ = 4042795680.

The previous prime is 4043242421. The next prime is 4043242517. The reversal of 4043242453 is 3542423404.

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 1936616049 + 2106626404 = 44007^2 + 45898^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043242453 - 2⁵ = 4043242421 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 (4043242153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209526 + ... + 228007.

It is an arithmetic number, because the mean of its divisors is an integer number (1010922307).

Almost surely, 2^4043242453 is an apocalyptic number.

It is an amenable number.

4043242453 is a deficient number, since it is larger than the sum of its proper divisors (446775).

4043242453 is an equidigital number, since it uses as much as digits as its factorization.

4043242453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446774.

The product of its (nonzero) digits is 46080, while the sum is 31.

The square root of 4043242453 is about 63586.4958383461. The cubic root of 4043242453 is about 1593.1008213272.

Adding to 4043242453 its reverse (3542423404), we get a palindrome (7585665857).

The spelling of 4043242453 in words is "four billion, forty-three million, two hundred forty-two thousand, four hundred fifty-three".