432224321 has 4 divisors (see below), whose sum is σ = 432653700. Its totient is φ = 431794944.

The previous prime is 432224291. The next prime is 432224327. The reversal of 432224321 is 123422234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 251698225 + 180526096 = 15865^2 + 13436^2 .

It is a cyclic number.

It is not a de Polignac number, because 432224321 - 2²² = 428030017 is a prime.

It is a super-2 number, since 2×432224321² = 373635727327822082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432224327) 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, 213176 + ... + 215193.

It is an arithmetic number, because the mean of its divisors is an integer number (108163425).

Almost surely, 2^432224321 is an apocalyptic number.

It is an amenable number.

432224321 is a deficient number, since it is larger than the sum of its proper divisors (429379).

432224321 is a wasteful number, since it uses less digits than its factorization.

432224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429378.

The product of its digits is 2304, while the sum is 23.

The square root of 432224321 is about 20790.0053150546. The cubic root of 432224321 is about 756.0834530133.

Adding to 432224321 its reverse (123422234), we get a palindrome (555646555).

The spelling of 432224321 in words is "four hundred thirty-two million, two hundred twenty-four thousand, three hundred twenty-one".