432312442 has 4 divisors (see below), whose sum is σ = 648468666. Its totient is φ = 216156220.

The previous prime is 432312373. The next prime is 432312443. The reversal of 432312442 is 244213234.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 420209001 + 12103441 = 20499^2 + 3479^2 .

It is not an unprimeable number, because it can be changed into a prime (432312443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108078109 + ... + 108078112.

Almost surely, 2^432312442 is an apocalyptic number.

432312442 is a deficient number, since it is larger than the sum of its proper divisors (216156224).

432312442 is a wasteful number, since it uses less digits than its factorization.

432312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216156223.

The product of its digits is 4608, while the sum is 25.

The square root of 432312442 is about 20792.1245186729. The cubic root of 432312442 is about 756.1348324316.

Adding to 432312442 its reverse (244213234), we get a palindrome (676525676).

The spelling of 432312442 in words is "four hundred thirty-two million, three hundred twelve thousand, four hundred forty-two".