434042261 has 2 divisors, whose sum is σ = 434042262. Its totient is φ = 434042260.

The previous prime is 434042239. The next prime is 434042263. The reversal of 434042261 is 162240434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404774161 + 29268100 = 20119^2 + 5410^2 .

It is a cyclic number.

It is not a de Polignac number, because 434042261 - 2²⁶ = 366933397 is a prime.

Together with 434042263, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 434042261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434042263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217021130 + 217021131.

It is an arithmetic number, because the mean of its divisors is an integer number (217021131).

Almost surely, 2^434042261 is an apocalyptic number.

It is an amenable number.

434042261 is a deficient number, since it is larger than the sum of its proper divisors (1).

434042261 is an equidigital number, since it uses as much as digits as its factorization.

434042261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 434042261 is about 20833.6809277669. The cubic root of 434042261 is about 757.1420019367.

Adding to 434042261 its reverse (162240434), we get a palindrome (596282695).

The spelling of 434042261 in words is "four hundred thirty-four million, forty-two thousand, two hundred sixty-one".