434532221 has 4 divisors (see below), whose sum is σ = 436716000. Its totient is φ = 432348444.

The previous prime is 434532193. The next prime is 434532229. The reversal of 434532221 is 122235434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434532221 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 (434532229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091591 + ... + 1091988.

It is an arithmetic number, because the mean of its divisors is an integer number (109179000).

Almost surely, 2^434532221 is an apocalyptic number.

It is an amenable number.

434532221 is a deficient number, since it is larger than the sum of its proper divisors (2183779).

434532221 is a wasteful number, since it uses less digits than its factorization.

434532221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183778.

The product of its digits is 5760, while the sum is 26.

The square root of 434532221 is about 20845.4364550134. The cubic root of 434532221 is about 757.4267897165.

Adding to 434532221 its reverse (122235434), we get a palindrome (556767655).

The spelling of 434532221 in words is "four hundred thirty-four million, five hundred thirty-two thousand, two hundred twenty-one".