434343221 has 8 divisors (see below), whose sum is σ = 468231960. Its totient is φ = 400522752.

The previous prime is 434343209. The next prime is 434343227. The reversal of 434343221 is 122343434.

It can be written as a sum of positive squares in 4 ways, for example, as 662596 + 433680625 = 814^2 + 20825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434343221 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 (434343227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3440 + ... + 29673.

It is an arithmetic number, because the mean of its divisors is an integer number (58528995).

Almost surely, 2^434343221 is an apocalyptic number.

It is an amenable number.

434343221 is a deficient number, since it is larger than the sum of its proper divisors (33888739).

434343221 is a wasteful number, since it uses less digits than its factorization.

434343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34135.

The product of its digits is 6912, while the sum is 26.

The square root of 434343221 is about 20840.9025956171. The cubic root of 434343221 is about 757.3169594084.

Adding to 434343221 its reverse (122343434), we get a palindrome (556686655).

The spelling of 434343221 in words is "four hundred thirty-four million, three hundred forty-three thousand, two hundred twenty-one".