432242121 has 4 divisors (see below), whose sum is σ = 576322832. Its totient is φ = 288161412.

The previous prime is 432242113. The next prime is 432242137. The reversal of 432242121 is 121242234.

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.

It is not a de Polignac number, because 432242121 - 2³ = 432242113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432242141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72040351 + ... + 72040356.

It is an arithmetic number, because the mean of its divisors is an integer number (144080708).

Almost surely, 2^432242121 is an apocalyptic number.

It is an amenable number.

432242121 is a deficient number, since it is larger than the sum of its proper divisors (144080711).

432242121 is a wasteful number, since it uses less digits than its factorization.

432242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144080710.

The product of its digits is 768, while the sum is 21.

The square root of 432242121 is about 20790.4334009659. The cubic root of 432242121 is about 756.0938319608.

Adding to 432242121 its reverse (121242234), we get a palindrome (553484355).

The spelling of 432242121 in words is "four hundred thirty-two million, two hundred forty-two thousand, one hundred twenty-one".