432343021 has 8 divisors (see below), whose sum is σ = 471881088. Its totient is φ = 392844000.

The previous prime is 432343013. The next prime is 432343033. The reversal of 432343021 is 120343234.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 432343021 - 2³ = 432343013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432342983 and 432343001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432343001) 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, 16476 + ... + 33706.

It is an arithmetic number, because the mean of its divisors is an integer number (58985136).

Almost surely, 2^432343021 is an apocalyptic number.

It is an amenable number.

432343021 is a deficient number, since it is larger than the sum of its proper divisors (39538067).

432343021 is a wasteful number, since it uses less digits than its factorization.

432343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19523.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 432343021 is about 20792.8598562103. The cubic root of 432343021 is about 756.1526600485.

Adding to 432343021 its reverse (120343234), we get a palindrome (552686255).

The spelling of 432343021 in words is "four hundred thirty-two million, three hundred forty-three thousand, twenty-one".