432022021 has 4 divisors (see below), whose sum is σ = 432758592. Its totient is φ = 431285452.

The previous prime is 432022009. The next prime is 432022033. The reversal of 432022021 is 120220234.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120220234 = 2 ⋅60110117.

It is an interprime number because it is at equal distance from previous prime (432022009) and next prime (432022033).

It is a cyclic number.

It is not a de Polignac number, because 432022021 - 2²⁷ = 297804293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432021986 and 432022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432022061) 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, 367405 + ... + 368578.

It is an arithmetic number, because the mean of its divisors is an integer number (108189648).

Almost surely, 2^432022021 is an apocalyptic number.

It is an amenable number.

432022021 is a deficient number, since it is larger than the sum of its proper divisors (736571).

432022021 is an equidigital number, since it uses as much as digits as its factorization.

432022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736570.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 432022021 is about 20785.1394270041. The cubic root of 432022021 is about 755.9654744971.

Adding to 432022021 its reverse (120220234), we get a palindrome (552242255).

The spelling of 432022021 in words is "four hundred thirty-two million, twenty-two thousand, twenty-one".