4524040421 has 2 divisors, whose sum is σ = 4524040422. Its totient is φ = 4524040420.

The previous prime is 4524040403. The next prime is 4524040463. The reversal of 4524040421 is 1240404254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4433695396 + 90345025 = 66586^2 + 9505^2 .

It is a cyclic number.

It is not a de Polignac number, because 4524040421 - 2¹⁰ = 4524039397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4524040921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2262020210 + 2262020211.

It is an arithmetic number, because the mean of its divisors is an integer number (2262020211).

Almost surely, 2^4524040421 is an apocalyptic number.

It is an amenable number.

4524040421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4524040421 is an equidigital number, since it uses as much as digits as its factorization.

4524040421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 4524040421 is about 67260.9873626607. The cubic root of 4524040421 is about 1653.8983941528.

Adding to 4524040421 its reverse (1240404254), we get a palindrome (5764444675).

It can be divided in two parts, 4 and 524040421, that added together give a palindrome (524040425).

The spelling of 4524040421 in words is "four billion, five hundred twenty-four million, forty thousand, four hundred twenty-one".