424340263 has 2 divisors, whose sum is σ = 424340264. Its totient is φ = 424340262.

The previous prime is 424340227. The next prime is 424340291. The reversal of 424340263 is 362043424.

It is an a-pointer prime, because the next prime (424340291) can be obtained adding 424340263 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424340263 - 2²¹ = 422243111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424340663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212170131 + 212170132.

It is an arithmetic number, because the mean of its divisors is an integer number (212170132).

Almost surely, 2^424340263 is an apocalyptic number.

424340263 is a deficient number, since it is larger than the sum of its proper divisors (1).

424340263 is an equidigital number, since it uses as much as digits as its factorization.

424340263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 424340263 is about 20599.5209410316. The cubic root of 424340263 is about 751.4580601698.

Adding to 424340263 its reverse (362043424), we get a palindrome (786383687).

The spelling of 424340263 in words is "four hundred twenty-four million, three hundred forty thousand, two hundred sixty-three".