432421331 has 4 divisors (see below), whose sum is σ = 444108432. Its totient is φ = 420734232.

The previous prime is 432421313. The next prime is 432421351. The reversal of 432421331 is 133124234.

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

It is a cyclic number.

It is not a de Polignac number, because 432421331 - 2¹⁸ = 432159187 is a prime.

It is a super-2 number, since 2×432421331² = 373976415007623122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 432421297 and 432421306.

It is not an unprimeable number, because it can be changed into a prime (432421351) 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, 5843495 + ... + 5843568.

It is an arithmetic number, because the mean of its divisors is an integer number (111027108).

Almost surely, 2^432421331 is an apocalyptic number.

432421331 is a deficient number, since it is larger than the sum of its proper divisors (11687101).

432421331 is a wasteful number, since it uses less digits than its factorization.

432421331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11687100.

The product of its digits is 1728, while the sum is 23.

The square root of 432421331 is about 20794.7428692927. The cubic root of 432421331 is about 756.1983110996.

Adding to 432421331 its reverse (133124234), we get a palindrome (565545565).

The spelling of 432421331 in words is "four hundred thirty-two million, four hundred twenty-one thousand, three hundred thirty-one".