434434221 has 24 divisors (see below), whose sum is σ = 711357920. Its totient is φ = 253272096.

The previous prime is 434434213. The next prime is 434434243. The reversal of 434434221 is 122434434.

It is a happy number.

434434221 is a `hidden beast` number, since 4 + 3 + 4 + 434 + 221 = 666.

It is not a de Polignac number, because 434434221 - 2³ = 434434213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434434211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95491 + ... + 99936.

Almost surely, 2^434434221 is an apocalyptic number.

It is an amenable number.

434434221 is a deficient number, since it is larger than the sum of its proper divisors (276923699).

434434221 is a wasteful number, since it uses less digits than its factorization.

434434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195465 (or 195462 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 434434221 is about 20843.0856880645. The cubic root of 434434221 is about 757.3698446442.

Adding to 434434221 its reverse (122434434), we get a palindrome (556868655).

The spelling of 434434221 in words is "four hundred thirty-four million, four hundred thirty-four thousand, two hundred twenty-one".