434013421 has 2 divisors, whose sum is σ = 434013422. Its totient is φ = 434013420.

The previous prime is 434013403. The next prime is 434013443. The reversal of 434013421 is 124310434.

It is an a-pointer prime, because the next prime (434013443) can be obtained adding 434013421 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311910921 + 122102500 = 17661^2 + 11050^2 .

It is a cyclic number.

It is not a de Polignac number, because 434013421 - 2⁵ = 434013389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434013392 and 434013401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434013401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217006710 + 217006711.

It is an arithmetic number, because the mean of its divisors is an integer number (217006711).

Almost surely, 2^434013421 is an apocalyptic number.

It is an amenable number.

434013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

434013421 is an equidigital number, since it uses as much as digits as its factorization.

434013421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 434013421 is about 20832.9887678173. The cubic root of 434013421 is about 757.1252320958.

Adding to 434013421 its reverse (124310434), we get a palindrome (558323855).

It can be divided in two parts, 434013 and 421, that added together give a palindrome (434434).

The spelling of 434013421 in words is "four hundred thirty-four million, thirteen thousand, four hundred twenty-one".