434134221 has 16 divisors (see below), whose sum is σ = 584438400. Its totient is φ = 286640640.

The previous prime is 434134187. The next prime is 434134237. The reversal of 434134221 is 122431434.

It is not a de Polignac number, because 434134221 - 2⁷ = 434134093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434134191 and 434134200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434134121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137541 + ... + 140661.

It is an arithmetic number, because the mean of its divisors is an integer number (36527400).

Almost surely, 2^434134221 is an apocalyptic number.

It is an amenable number.

434134221 is a deficient number, since it is larger than the sum of its proper divisors (150304179).

434134221 is a wasteful number, since it uses less digits than its factorization.

434134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556.

The product of its digits is 2304, while the sum is 24.

The square root of 434134221 is about 20835.8878140577. The cubic root of 434134221 is about 757.1954697424.

Adding to 434134221 its reverse (122431434), we get a palindrome (556565655).

The spelling of 434134221 in words is "four hundred thirty-four million, one hundred thirty-four thousand, two hundred twenty-one".