432022421 has 2 divisors, whose sum is σ = 432022422. Its totient is φ = 432022420.

The previous prime is 432022351. The next prime is 432022427. The reversal of 432022421 is 124220234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345439396 + 86583025 = 18586^2 + 9305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432022421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 432022393 and 432022402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432022427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216011210 + 216011211.

It is an arithmetic number, because the mean of its divisors is an integer number (216011211).

Almost surely, 2^432022421 is an apocalyptic number.

It is an amenable number.

432022421 is a deficient number, since it is larger than the sum of its proper divisors (1).

432022421 is an equidigital number, since it uses as much as digits as its factorization.

432022421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 432022421 is about 20785.1490492611. The cubic root of 432022421 is about 755.9657078078.

Adding to 432022421 its reverse (124220234), we get a palindrome (556242655).

The spelling of 432022421 in words is "four hundred thirty-two million, twenty-two thousand, four hundred twenty-one".