424240013 has 2 divisors, whose sum is σ = 424240014. Its totient is φ = 424240012.

The previous prime is 424240007. The next prime is 424240027. The reversal of 424240013 is 310042424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326091364 + 98148649 = 18058^2 + 9907^2 .

It is a cyclic number.

It is not a de Polignac number, because 424240013 - 2²⁰ = 423191437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424240213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212120006 + 212120007.

It is an arithmetic number, because the mean of its divisors is an integer number (212120007).

Almost surely, 2^424240013 is an apocalyptic number.

It is an amenable number.

424240013 is a deficient number, since it is larger than the sum of its proper divisors (1).

424240013 is an equidigital number, since it uses as much as digits as its factorization.

424240013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 424240013 is about 20597.0874882834. The cubic root of 424240013 is about 751.3988784153.

Adding to 424240013 its reverse (310042424), we get a palindrome (734282437).

The spelling of 424240013 in words is "four hundred twenty-four million, two hundred forty thousand, thirteen".