434340253 has 2 divisors, whose sum is σ = 434340254. Its totient is φ = 434340252.

The previous prime is 434340251. The next prime is 434340289. The reversal of 434340253 is 352043434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397882809 + 36457444 = 19947^2 + 6038^2 .

It is a cyclic number.

It is not a de Polignac number, because 434340253 - 2¹ = 434340251 is a prime.

It is a super-2 number, since 2×434340253² = 377302910752208018, which contains 22 as substring.

Together with 434340251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434340251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217170126 + 217170127.

It is an arithmetic number, because the mean of its divisors is an integer number (217170127).

Almost surely, 2^434340253 is an apocalyptic number.

It is an amenable number.

434340253 is a deficient number, since it is larger than the sum of its proper divisors (1).

434340253 is an equidigital number, since it uses as much as digits as its factorization.

434340253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 434340253 is about 20840.8313893664. The cubic root of 434340253 is about 757.3152344117.

Adding to 434340253 its reverse (352043434), we get a palindrome (786383687).

The spelling of 434340253 in words is "four hundred thirty-four million, three hundred forty thousand, two hundred fifty-three".