434474221 has 4 divisors (see below), whose sum is σ = 434518012. Its totient is φ = 434430432.

The previous prime is 434474213. The next prime is 434474267. The reversal of 434474221 is 122474434.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 430106121 + 4368100 = 20739^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 434474221 - 2³ = 434474213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434474281) 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 in 3 ways as a sum of consecutive naturals, for example, 895 + ... + 29491.

It is an arithmetic number, because the mean of its divisors is an integer number (108629503).

Almost surely, 2^434474221 is an apocalyptic number.

It is an amenable number.

434474221 is a deficient number, since it is larger than the sum of its proper divisors (43791).

434474221 is a wasteful number, since it uses less digits than its factorization.

434474221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43790.

The product of its digits is 21504, while the sum is 31.

The square root of 434474221 is about 20844.0452167999. The cubic root of 434474221 is about 757.3930885651.

The spelling of 434474221 in words is "four hundred thirty-four million, four hundred seventy-four thousand, two hundred twenty-one".